Title :
CoRe-MAC: A MAC-Protocol for Cooperative Relaying in Wireless Networks
Author :
Adam, Helmut ; Elmenreich, Wilfried ; Bettstetter, Christian ; Senouci, Sidi Mohammed
Author_Institution :
Mobile Syst. Group, Univ. of Klagenfurt, Klagenfurt, Austria
Abstract :
Cooperative relaying methods can improve wireless links, but introduce overhead due to relay selection and resource reservation compared to non-cooperative transmission. In order to be competitive, a cooperative relaying protocol must avoid or compensate for this overhead. In this paper, we present a MAC protocol for relay selection and cooperative communication as an extension to CSMA/CA which addresses resource reservation, relay selection, and cooperative transmission while keeping the overhead in terms of time and energy low. We discuss the efficiency of this protocol for packet error rate, throughput, and message delay in a multi-hop network. Simulation results show that the protocol performs similar and without noticeable overhead compared to standard CSMA/CA for good SNR while it is able to significantly improve throughput and reliability at larger distances.
Keywords :
carrier sense multiple access; packet radio networks; radio links; telecommunication congestion control; CSMA/CA; CoRe-MAC; MAC-protocol; SNR; cooperative communication; cooperative relaying methods; cooperative relaying protocol; message delay; multihop network; noncooperative transmission; packet error rate; relay selection; resource reservation; wireless links; wireless networks; Access protocols; Fading; Mobile communication; Multiaccess communication; Relays; Signal to noise ratio; Telecommunication network reliability; Throughput; Wireless application protocol; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425425
