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Research Trends in Wireless Communication

Prof. Dr. Mahamod Ismail, [email protected]

IIUM, 22nd Rejab 1429

mailto:[email protected]

IIUM, 25th July 2008

Biodata

DOB – 5 April 1959, Kg. Wakaf Mempelam K.Trg.School – Sultan Sulaiman Sec. School (SSSS), K.Trg.Tutor UKM (1985), Lecturer UKM (1987), Associate Prof. (1997), Prof. (2007)Dip. Electrical Eng. (Communication) – Universiti Teknologi Malaysia, 1981BSc. – Univ of Strathclyde (Electronics & Electrical) ,UK, 1983-1985MSc – UMIST, Manchester (Communication Eng. & Digital Electronics), 1986-87PhD – Univ of Bradford, Mobile Communication, 1991-1995Research Area – Mobile Communication & Wireless Networking Technical Assistant, National Electricity Board (LLN), 1981 - 1983Tiungsat Team Engineer, 1997-98, Surrey Satellite Technology Ltd., UKGuest Professor, University Duisburg Essen, Germany , 2002Currently: Deputy Director (Research & Education), Centre for Information Technology, UKM & : Liason Professor, UKM Mercator Office, UKMMIEEE, IEEE Malaysia Educational Activities, Ex-Officio IEEE Comsoc MalaysiaEmail: [email protected], [email protected]://www.eng.ukm.my/~mahamodTelephone: 03-89217004/6191/6322, 019-3275425

mailto:[email protected]


Outline

IntroductionWireless Technology and ChallengesResearch Topics

IIUM, 255h July 2008

IntroductionAdvance of the Internet

The Internet became a mass medium and IP the leading network protocol.Advance of mobile communication

Communication via mobile radio networks is increasing enormously.Bandwidth evolution

The available bandwidth in backbone and access is exploding and the prices for bandwidth decrease dramatically.

Advance of e-commerceE-commerce changes and amend business processes tremendously.

Deregulation and globalizationThe I&C markets move fast. Competition and differentiation are driven by deregulation and globalization.

Services are keyThe end user is interested in services only, the underlying technology is not relevant to him.


IntroductionCommunication Medium

WiredWireless

Wireless RadioMobility

TypesWirelessMobileCellular/Personal

Private versus Public Wireless

Mobile

Cellular


Wireless Technology

Walkie Talkie/Radiophone/CB Radio/DSRR PagingPrivate Mobile Radio/Trunked RadioCordlessCellular System and Personal Radio System (PCS/PCN) Bluetooth, Ad hoc Network and WPANWireless/Radio in Local Loop (WiLL/RiLL)Wireless LAN (WLAN), WiMAX & Wireless ATM (WATM)Mobile SatelliteLocal Multipoint Distribution Services (LMDS), MMDSEtc.



Wireless Technology

Cable ReplacementCable Replacement

Data/voice Data/voice Access PointAccess Point

Ad hocAd hoc

Wireless Technology


MobilityMobility

Outdoors

IndoorsOffice

Fixed

Walk

Vehicle

0.50.5 22 2020 155 Mb/s155 Mb/s

UMTSUMTS

GSMGSM

IMT-2000IMT-2000

IS-95IS-136IS-95IS-136

U-NII U-NII BRANBRANIEEE 802.11IEEE 802.11

Premise

GSM = Global System for Mobile communicationsUMTS = Universal Mobile Telecommunications SystemBRAN= Broadband Radio Access NetworksU-NII= Unlicensed National Information InfrastructureIMT-2000= International Mobile Telecommunications-2000


Wireless Technology

Wireless Technology


Rapid technology development – migration, backward compatibility and convergence (2G, 3G, B3G)

Diverse technology and standards in different environments

Collabration: 3GPP/3GPP1, Operator Harmonization Group (OHP), IEEE802.20

Technology limitation: capacity, coverage (hotspot), quality, QoS

Equipment and services implementation costs

Security, mobility, personalised

Information contents and device software

etc.

Wireless Challenges


IP Backbone/Internet

Multi-mode terminal w/MobileIP client& IPSec Client

PublicWLAN

802.11 Access Points

Ethernet

WLANGateway

& FA

802.11 Access Points

Ethernet

WLANGateway,

HA, FA

Home AAA ServerEnterprise

Corporate LAN

VPNFirewall

PDSN/FA/HA/Firewall

CDMA WSP

PCF

BSBS

MSC/RNC

GGSN/FA/HA/Firewall

GSM/UMTSWSP

BS

BSC

SGSN

CGFBS

• Current mobility is based on single wireless technologies.

• Future will allow automatic configuration for seamless roaming amongst various wireless technologies…and, hence, greater coverage (ubiquitous).

Wireless Challenges


Research Topics – Final Year ProjectScope

Implementation/Experimental/TestbedModeling and Simulation – Performance evaluationInvestigation/Case studyEtc.

PreparationTopic/Title selectionProposal: Problem statement, objective, methodology, hardware/sofware requirement, expected result, conclusion, referencesLiterature ReviewProject Planning and Management

SkillCommunication/Negotiation, Programming, Documentation and Reporting, etc.


Research Topic- Performance Of Uplink Power Control During Soft Handover In WCDMA System

Handoff – Hard, Soft and SofterPower Control

Overcoming the near-far effectOptimizing system capacity by controlling interference.Maximizing the battery life of mobile terminals

Study – Open loop and Closed loop Power Control


Research Topic- Architecture and Mobility Management Protocol For Next-Generation Wireless Systems (NGWS)


Propose a system architecture and evaluate system performance e.g. signalling delay, handoff performance, etc.

SGSN

Central Anchor

Central Anchor

GSN+

RNC RNC

GGSN aGW(MME/UPE)

aGW(MME/UPE)

Ts1u ms

UE eNB aGW

1 ms 0.5 ms

1 ms 0.5 ms

HARQ RTT 2.5 ms

1 ms

1 ms

S1-UTTI + framealignment

0.75 ms

0.75 ms

Ts1u ms

Bus Stop

Gas Station

BSRS

SS

BS = Base StationMS = Mobile StationSS = Static StationRS = Relay Station

MS

MSMOVE

BSRS

F1

F2F

3 F1

F2

F3

FF1

F2 F

3F1

F2

F3

F

F1

F1

F3

F3

F2

F2

F

F

F

F

F

F1

F1

F1

F1

F1

F1

F1

F1

F2

F2

F2

F2

F2

F2

F2

F2

F3

F3

F3

F3

F3

F3

F3

F3

Research Topic- Resource Management for WiMAX Mesh Network Protocol Design


To evaluate the performance of interference aware channel assignment scheme for WiMAX mesh network.To evaluate mobility, location and handoff management scheme forWiMAX mesh network.To propose and evaluate handoff techniques in a WiMAX mesh cellular environment.

-2 -1 0 1 2 3 4

-5

-4

-3

-2

-1

0

1

2

Research Topic- An Energy Efficient and Optimal Neighbor Selection Protocol for Wireless Ad Hoc Network

Ad Hoc networkA collection of communication devices (nodes) that form a peer-to-peer network temporarily in an ad hoc manner without any backbone infrastructure or base stations.

Challenges for Ad Hoc NetworksScalability, Energy Efficiency, Quality of service, Security, Design of Ad Hoc Networks etc.

Energy Efficient Protocols• SON (Select Optimal Neighbor

protocol)SCON algorithm (Select Closest Optimal Neighbor)SEEON algorithm (Select Energy Efficient Optimal Neighbor)


Research Topic- Implementation of WiFi Based Location Based Services (LBS) Testbed

Database (MS Access & SQL)

Server (Windows XP)

User Device WiFi/Bluetooth

WiFi

Check device readiness to support service

Initialise WiFiControl Centre Detect WiFi Device Get Device Address

Check Device History – Message received

before

Request authentication to

send message

Server sent message to device

Device receive message


Research Topic- Development of Short Messaging Services (SMS) Based Controlled for Electrical Appliances

MODEMNOKIA

6100

LITAR MIKROPENGAWAL

KABEL CA-42KABEL RS-232

Modem Nokia 6100

KomputerPeribadi

(AntaramukaVisual Basic)

LitarMikropengawal

(kawalan nyalaanLED)


Research Topic- Monitoring WEP Security Level in UKM Wireless LAN (802.11) Network

Hardware NotebookAccess Point (AP) – D-LinkWLAN adapter – LinkSysWUSB54G v4

SoftwareLinux – BackTrack betaAirCrack 2.41Driver RT2570 Ralink.


Research Topic- Development of Broadband Wireless Channel Model (WiMax) Simulator


Research Topic- Development of IIlegal Web Accesing and Monitoring Testbed


Research Topic- Development of Location Based Service (LBS) Using WLAN Technology


Research Topic- Error Performance Comparison between E-OTD and Time of Arrival (TOA) in Different Environments

LDT TechniquesEOTD - Enhanced-Observed Time DifferenceTOA – Time of Arrival

Resultsaccuracy of E-OTD technique is higher than TOA technique and the accuracy of E-OTD further increases with adding more BTS.


Research Topic- Development of a Secured Location Based Service (LBS) using Dummy Location

Service provider

Position data allows invasion of user privacy.

Cachestime N E1:00 34’12 135’671:05 34’15 135’661:10 34’16 135’641:15 34’16 135’611:20 34’18 135’60

Hospital Search

Hospitals

Home

Finding- User route- Hospital visited by user

Service provider can continuously grasp user

location in detail.

Source: Hidetoshi Kido et al, Osaka University


Research Topic- Aplication Of Genetic Algorithm For Large Scale Coverage Prediction Optimization in GSM Mobile Environment


Research Topic- Optimisation of UTRA SHO Algorithm


Research Topic- Development of Location Based Services System


Research Topic- Development of Universal Intelligent Positioning System

A hybrid statistical analysis method is recommended to be implemented as part of complementing the Database method, Cell ID + RTT.Prediction, a priori and modeling theory will be used for location estimation. This method will combine Cell ID+RTT to provide the best fall back method, in the event of high noise/degradation.The UIPS also need to ensure that the radio traffic does not congest the BSS/RAN network as this is the core of Telco’s revenue. A centralized location server (with positioning coordinates, GIS/mapping info) will be integrated as part of the UIPS subsystem.CP can extract their info via XML or HTTP and an API would be provided upon signing the necessary contracts. UIPS is expected to be Vendor independent.

GSM 3G 4G

CP

UIPS

Network Layer

Positioning Determining Layer

Locations Content/Applications Layer

Future Work

QoS Content RequestMapping InfoSMS or IP BillingQoSNetwork/LDT

UIPS and its subsystem in Telco’s network


Research TopicsIntelligent Optimisation of Radio Resource Management in Wireless Network

Application of Genetic Algorithm in Smart Antenna System for 3G SystemAdaptive Power Control Strategies During Soft Handoff in WCDMA SystemPower Control Performance and Implementation for W-CDMA System, Soft Handoff (SHO) Optimization in WCDMA SystemsSoft Handover Effects on Downlink Direction of W-CDMA SystemPerformance Evaluation of Switched Beam and Adaptive AntennaImplementation of Intelligent Resource Management for Smart Antenna Using FPGAPerformance of Uplink Power Control During Soft Handover in FDD-WCDMALocation Updating Minimization Using Dynamic Counter in Wireless SystemUniversal Intelligent Positioning System (UIPS) for B3G Wireless SystemOptimisation of Coverage Prediction Using Genetic AlgorithmA Mixed Strategy of Cost Reduction in Location Management in Cellular Networks


Research TopicsWireless Networking

Power Aware Routing Techniques in Ad hoc NetworkMobility Pattern Aware Routing In Mobile Ad hoc NetworksMobility Management in Cellular IPv6Authentication Techniques in MIPv6Performance of Context Aware in an Hierarchical MIPv6Development of Secured Video Transmission in an HMIPv6Handoff Optimisation Techniques in HMIPv6Location Based Services in WiFi Environment

OthersIntegration of TCP in IEEE 802.20 Wireless AccessDevelopment of an Improved and Secured Protocol for On-line Mobile Banking and TransactionMIMO-OFDM Techniques for Wireless SystemIntegration of MIMO Techniques in IEEE 802.16 Broadband Access


FYP - 2008Location Based Authentication Techniques for 802.11bg Indoor Environment

In the location-based authentication system, a user will be authenticating based on his/her current position. Once the user position has been authenticated, the user is authorized to access resources based on his position. The position could be determined using Received Signal Strength from the nearest Access Points and finger printing within the proximity. The project will focus on the development of authentication server and the accuracy of the location determination without the necessity of additional hardware in the presence noises and interferences. Knowledge on C programming language and networking is important.


FYP - 2008Development of Mobile Locator Devices for GSM/3G Network

Current network and mobile phone have very limited capabilities to support Assisted-Global Positioning Services (A-GPS). In this project, a simple device supporting location based services in GSM/3G network need to be built. The device will be built and integrate with voice and data capabilities using selected electronic module. It will also require electronic integration of existing GSM/UMTS modules, software development for usability of this device to application layers, and capabilities to be connected to GPRS and HSPDA data services. The student is required to have some knowledge in GSM/3G services and hardware/software.


FYP - 2008Implementation of a GSM-Based Alarm System for Flood Monitoring

An automated Short Message Services (SMS) based controlled is commonly used for controlling devices and initiating an alarm system. The objective of the project is to design and implement a monitoring device using a GSM module. The system will consist of GSM modem module, PIC microcontroller and water level sensor. Using the information on the trend in water level, the system will forecast the possibility of flood and alert the control centre or users via SMS. Knowledge in C or Visual Basic and microcontroller programming language will help the student to complete the project successfully.


FYP - 2008Access Point/Based Station Selection Emulator for WiFi/Cellular Network

Recently most of the smart phones are equipped with WiFi/GSM/3G/HSDPA capabilities. In this project, we use an open source program and application to communicate with WiFi/GSM/3G/HSDPA network. An application will be developed to monitor and select the connection based on certain criteria such as received signal strength to initiate the vertical handoff. Knowledge on C programming language and scripting language such as Python will be beneficial.


FYP - 2008Active Probing and Auditing UKM Campus Network

The Internet connectivity within UKM Metropolitan Area Network/Local Area Network (MAN/LAN) is served via wired and wireless infrastructure. To become a sustainable development campus, the network performance must be maintained at a certain acceptable level. In this project, the student needs to probe and audit the network performance within selected location within UKM campus using network auditing tools. Among the network performance parameters for benchmarking are data throughputs, security level, network coverage, downtime and applications. The student is required to have some knowledge on the networking.


FYP - 2008Implementation of a GSM-Based Alarm System for Flood Monitoring

An automated Short Message Services (SMS) based controlled is commonly used for controlling devices and initiating an alarm system. The objective of the project is to design and implement a monitoring device using a GSM module. The system will consist of GSM modem module, PIC microcontroller and water level sensor. Using the information on the trend in water level, the system will forecast the possibility of flood and alert the control centre or users via SMS. Knowledge in C or Visual Basic and microcontroller programming language will help the student to complete the project successfully.


FYP - 2008Development of Graphical User Interface (GUI) for IEEE802.11bg Wardrive Data Analysis

Wardriving is the process of locating and logging the existence of Wireless LAN (802.11) access points while in motion. This task can be automated using dedicated wardriving software such as Netstumblerand AirMagnet using a notebook equipped with GPS Device. The data collected can further analysed and plotted using KMS/Google Earth or Garmin. In this project, the student has to develop a user friendly Matlab/Visual Basic based Wardrive GUI to analyze the data. Knowledge in Matlab or Visual Basic and networking will help the student to complete the project successfully.


http://www.wardrive.net/wardriving/tools

http://www.wardrive.net/general/garmin

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