Research Article
A Full Duplex Multi-channel MAC Protocol for Multi-hop Cognitive Radio Networks
@INPROCEEDINGS{10.1109/CROWNCOM.2006.363465, author={Noun Choi and Maulin Patel and S. Venkatesan}, title={A Full Duplex Multi-channel MAC Protocol for Multi-hop Cognitive Radio Networks}, proceedings={1st International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2007}, month={5}, keywords={Ad hoc networks Chromium Cognitive radio Frequency Media Access Protocol Receivers Spread spectrum communication Switches Throughput Transceivers}, doi={10.1109/CROWNCOM.2006.363465} }- Noun Choi
Maulin Patel
S. Venkatesan
Year: 2007
A Full Duplex Multi-channel MAC Protocol for Multi-hop Cognitive Radio Networks
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2006.363465
Abstract
Cognitive radio (CR) offers a new mechanism for flexible usage of radio spectrum. This paper presents a full-duplex multi-channel MAC protocol designed for CR enabled multi-hop networks. Each node is equipped with at least two transceivers, one for transmitting and another for receiving. A node selects an unused frequency band as its home channel (HCh) and tunes its receiver to its HCh. When a node j has a packet to transmit to its neighbor i, node j tunes its transmitter to the HCh of node i and sends the packet(s) to node i using CSMA/CA scheme of IEEE 802.11 DCF mode. The protocol has two flavors: (a) With a common control channel which requires 3 transceivers and (b) without the control channel. Simulation studies show that the proposed protocol outperforms IEEE 802.11 DCF mode by a factor of 20
