Rate matching: a new approach to hidden terminal problem in ad hoc networks

Authors:
Caishi Huang;Chin-Tau Lea;Albert Kai-Sun Wong
Affiliations:
Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
Venue:
Wireless Networks
Year:
2010

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Abstract

Prior works on the hidden terminal problem in wireless networks often assume that the SNR requirement and the transmission range in a network are fixed. In fact, they are rate dependent. Because of this assumption, many of the prior conclusions about the hidden terminal problem are not accurate. A new analysis of the hidden terminal problem is presented in the paper. The new insights provided by the analysis lead to a rate-matching scheme for tackling the hidden terminal problem in wireless networks. The new method is simple, yet efficient, and requires no protocol changes from the 802.11 standard. NS2-based simulations are given in the paper to demonstrate the advantages of the new scheme.