Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks

Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks
Author :
Publisher :
Total Pages : 151
Release :
ISBN-10 : OCLC:798373694
ISBN-13 :
Rating : 4/5 (94 Downloads)

Book Synopsis Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks by : Yuhan Moon

Download or read book Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks written by Yuhan Moon and published by . This book was released on 2010 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, many wireless networks are single-channel systems. However, as the interest in wireless services increases, the contention by nodes to occupy the medium is more intense and interference worsens. One direction with the potential to increase system throughput is multi-channel systems. Multi-channel systems have been shown to reduce collisions and increase concurrency thus producing better bandwidth usage. However, the well-known hidden- and exposed-terminal problems inherited from single-channel systems remain, and a new channel selection problem is introduced. In this dissertation, Multi-channel medium access control (MAC) protocols are proposed for mobile ad hoc networks (MANETs) for nodes equipped with a single half-duplex transceiver, using more sophisticated physical layer technologies. These include code division multiple access (CDMA), orthogonal frequency division multiple access (OFDMA), and diversity. CDMA increases channel reuse, while OFDMA enables communication by multiple users in parallel. There is a challenge to using each technology in MANETs, where there is no fixed infrastructure or centralized control. CDMA suffers from the near-far problem, while OFDMA requires channel synchronization to decode the signal. As a result CDMA and OFDMA are not yet widely used. Cooperative (diversity) mechanisms provide vital information to facilitate communication set-up between source-destination node pairs and help overcome limitations of physical layer technologies in MANETs. In this dissertation, the Cooperative CDMA-based Multi-channel MAC (CCM-MAC) protocol uses CDMA to enable concurrent transmissions on each channel. The Power-controlled CDMA-based Multi-channel MAC (PCC-MAC) protocol uses transmission power control at each node and mitigates collisions of control packets on the control channel by using different sizes of the spreading factor to have different processing gains for the control signals. The Cooperative Dual-access Multi-channel MAC (CDM-MAC) protocol combines the use of OFDMA and CDMA and minimizes channel interference by a resolvable balanced incomplete block design (BIBD). In each protocol, cooperating nodes help reduce the incidence of the multi-channel hidden- and exposed-terminal and help address the near-far problem of CDMA by supplying information. Simulation results show that each of the proposed protocols achieve significantly better system performance when compared to IEEE 802.11, other multi-channel protocols, and another protocol CDMA-based.


Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks Related Books

Cooperative Multi-channel MAC Protocols for Wireless Ad Hoc Networks
Language: en
Pages: 151
Authors: Yuhan Moon
Categories: Ad hoc networks (Computer networks)
Type: BOOK - Published: 2010 - Publisher:

DOWNLOAD EBOOK

Today, many wireless networks are single-channel systems. However, as the interest in wireless services increases, the contention by nodes to occupy the medium
Multichannel Medium Access Control Protocol with Cooperative Channel Selection for Ad Hoc Networks
Language: en
Pages: 150
Authors: Jai Mondhe
Categories:
Type: BOOK - Published: 2003 - Publisher:

DOWNLOAD EBOOK

A mobile ad hoc network is a collection of mobile terminals equipped with wireless transceivers that form an autonomous network without any pre-planned infrastr
Multi-channel MAC Protocols for Wireless Ad Hoc Networks
Language: en
Pages: 72
Authors: Mehdi Ait Tahar
Categories:
Type: BOOK - Published: 2003 - Publisher:

DOWNLOAD EBOOK

Ad-Hoc, Mobile, and Wireless Networks
Language: en
Pages: 587
Authors: Evangelos Kranakis
Categories: Computers
Type: BOOK - Published: 2007-09-06 - Publisher: Springer Science & Business Media

DOWNLOAD EBOOK

This book constitutes the refereed proceedings of the 6th International Conference on Ad-Hoc Networks and Wireless, ADHOC-NOW 2007, held in Morelia, Mexico, in
Multiaccess, Mobility and Teletraffic in Wireless Communications: Volume 4
Language: en
Pages: 313
Authors: Ezio Biglieri
Categories: Computers
Type: BOOK - Published: 2013-03-09 - Publisher: Springer Science & Business Media

DOWNLOAD EBOOK

The unrelenting growth of wireless communications continues to raise new research and development problems that require unprecedented interactions among communi