NDLI: A scheme of MAC/PHY cross-layer design in MIMO ad hoc networks based on random number allocation strategy

Content Provider	IEEE Xplore Digital Library
Author	Fei Ji Weishan Lu Xiaocheng Deng
Copyright Year	2011
Description	Author affiliation: School of Electronic and Information Engineering, South China University of technology, Guangzhou, China (Fei Ji; Weishan Lu; Xiaocheng Deng)
Abstract	It is well known that MIMO technology can provide additional space degrees of freedom and increase the channel capacity greatly. However, it is a challenge to design the MAC layer when using MIMO in ad hoc networks. In FT (Follow Traffic) scheme, RTS/CTSs are sent simultaneously and used to estimate the traffic load. The node allocates the channel estimation resources in order of decreasing received power of RTS. Though FT scheme greatly improves the throughput, the fairness among nodes is declined and the complexity of receivers is increased. To address the problem, this paper presents a scheme of MAC layer based on random number allocation strategy, in which the node allocates the channel estimation resources in an increasing order of random number in each RTS. The throughput performance of the proposed scheme is suboptimal, but it ensures the fairness and reduces the complexity of the receivers.
Starting Page	651
Ending Page	654
File Size	109686
Page Count	4
File Format	PDF
ISBN	9781424487271
e-ISBN	9781424487288
DOI	10.1109/CSAE.2011.5952760
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Zero-forcing decode Transmitting antennas Channel estimation Receiving antennas Throughput Cross-layer design MIMO Ad hoc networks MAC
Content Type	Text
Resource Type	Article

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