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A Cooperative Diversity-Based Robust MAC Protocol in Wireless Ad Hoc Networks.
- Source :
-
IEEE Transactions on Parallel & Distributed Systems . 03/01/2011, Vol. 22 Issue 3, p353-363. 0p. - Publication Year :
- 2011
-
Abstract
- In interference-rich and noisy environment, wireless communication is often hampered by unreliable communication links. Recently, there has been active research on cooperative communication that improves the communication reliability by having a collection of radio terminals transmit signals in a cooperative way. This paper proposes a medium access control (MAC) algorithm, called Cooperative Diversity MAC (CD-MAC), which exploits the cooperative communication capability of the physical (PHY) layer to improve robustness in wireless ad hoc networks. In CD-MAC, each terminal proactively selects a partner for cooperation and lets it transmit simultaneously so that this mitigates interference from nearby terminals, and thus, improves the network performance. For practicability, CD-MAC is designed based on the widely adopted IEEE 802.11 MAC. For accurate evaluation, this study presents and uses a realistic reception model by taking bit error rate (BER), derived from Intersil HFA3861B radio hardware, and the corresponding frame error rate (FER) into consideration. System-level simulation study shows that CD-MAC significantly outperforms the original IEEE 802.11 MAC in terms of packet delivery ratio and end-to-end delay. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10459219
- Volume :
- 22
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Parallel & Distributed Systems
- Publication Type :
- Academic Journal
- Accession number :
- 57727332
- Full Text :
- https://doi.org/10.1109/TPDS.2010.99