Title :
Dynamical Cooperative MAC Based on Optimal Selection of Multiple Helpers
Author :
Li, Yun ; Cao, Bin ; Wang, Chonggang ; You, Xiaohu ; Daneshmand, Ali ; Zhuang, Hongcheng ; Jiang, Tao
Author_Institution :
Special Res. Centure for Opt. Internet & Wireless Inf. Networks, Chongqing Univ. of Post & Telecommun., Chongqing, China
Abstract :
Cooperative communication can obtain spatial diversity without using multiple antennas, and thus achieve more reliable transmission or consume less power. Accordingly, a new cooperative MAC mechanism in wireless networks, the DCMAC, is proposed in this paper. The DCMAC makes full use of the broadcasting characteristics of wireless channel to obtain channel information, chooses the most suitable cooperative nodes, and reserves wireless channel efficiently. Evaluation results show that DCMAC can choose the most suitable cooperative nodes to improve system performance.
Keywords :
access protocols; antenna arrays; diversity reception; radio networks; wireless channels; cooperative communication; cooperative nodes; dynamical cooperative MAC; multiple antennas; spatial diversity; wireless channel; wireless networks; Channel capacity; IP networks; MIMO; Media Access Protocol; Next generation networking; Optical fiber networks; Relays; System performance; Transmitting antennas; 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.2009.5425531
