Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61908
Title: On eliminating the exposed terminal problem using signature detection
Authors: Yao, J
Xiong, T
Zhang, J
Lou, W 
Keywords: Cross layer design
Exposed terminals
Signal correlation
Wireless networks
Issue Date: 2016
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on mobile computing, 2016, v. 15, no. 8, 7273921, p. 2034-2047 How to cite?
Journal: IEEE transactions on mobile computing 
Abstract: Wireless networks are propelled to improve the network throughput effectively to face the challenge of sustaining the rapid growth of data traffic and the high density of wireless nodes. Exposed terminals are a main source in wireless networks that degrades the network throughput performance through excessively avoiding interferences and forbidding concurrencies. To combat the exposed terminal problem and exploit the concurrent transmissions in wireless networks, we present the design of Interference Resistant Multiple Access (IRMA) in this paper, which can achieve higher throughput compared to the 802.11 standard. By observing that nodes in current protocols waste transmission opportunities in two different scenarios, IRMA exploits the concurrency in two aspects. IRMA proposes a signature detection method in the physical layer to combat control frames' collisions, thus exploits the concurrency at the transmitter side. IRMA also designs a new NAV update scheme in the MAC layer to differentiate the interference ranges of different transmission links, thus exploits the concurrency of all non-interfering links. Experimental results based on USRP2 demonstrate the feasibility of the signature detection method, and simulations based on ns-2 show that IRMA outperforms the 802.11 standard and other protocols significantly.
URI: http://hdl.handle.net/10397/61908
ISSN: 1536-1233
EISSN: 1558-0660
DOI: 10.1109/TMC.2015.2478459
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