Title :
A Full Duplex Multi-channel MAC Protocol for Multi-hop Cognitive Radio Networks
Author :
Choi, Noun ; Patel, Maulin ; Venkatesan, S.
Author_Institution :
Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Dallas, TX
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
Keywords :
access protocols; cognitive radio; radio spectrum management; telecommunication channels; CSMA/CA scheme; IEEE 802.11 DCF mode; common control channel; full duplex multichannel MAC protocol; home channel; multihop cognitive radio networks; radio spectrum; transceivers; Ad hoc networks; Chromium; Cognitive radio; Frequency; Media Access Protocol; Receivers; Spread spectrum communication; Switches; Throughput; Transceivers;
Conference_Titel :
Cognitive Radio Oriented Wireless Networks and Communications, 2006. 1st International Conference on
Conference_Location :
Mykonos Island
Print_ISBN :
1-4244-0381-2
Electronic_ISBN :
1-4244-0381-2
DOI :
10.1109/CROWNCOM.2006.363465
