標題: Performance Analysis of Cooperative Communications from MAC Layer Perspectives
作者: Liao, Chun-Chieh
Hsu, Yu-Pin
Feng, Kai-Ten
電信工程研究所
Institute of Communications Engineering
關鍵字: Cooperative communication;performance analysis;IEEE 802.11 protocol;medium access control
公開日期: 2008
摘要: In recent years, cooperative communication has been proposed as a new communication paradigm that incorporates a relay node to assist the direct point-to-point transmission. By exploiting the cooperative diversity, different types of techniques have been proposed to improve the transmission reliability from the physical layer perspective, e.g. the cooperative automatic repeat request. However, owing to the longer transmission time resulting from the cooperative schemes, there is no guarantee to enhance the network throughput in view of the medium access control (MAC) performance. In this paper, the system throughput of the cooperative communication is evaluated by exploiting the proposed analytical model based on the IEEE 802.11 MAC protocol. Both the relay-based and the original direct communications are considered in the analytical studies. Simulations are conducted to further validate the effectiveness of the proposed model. In terms of the network throughput, whether to adopt the cooperative schemes depends on the tradeoff between the cooperative transmission delay and the channel condition of the direct communication.
URI: http://hdl.handle.net/11536/31597
ISBN: 978-1-4244-2643-0
期刊: 2008 IEEE 19TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS
起始頁: 1322
結束頁: 1326
顯示於類別:會議論文