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Dynamic open spectrum sharing MAC protocol for wireless ad hoc networks

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3 Author(s)
Liangping Ma ; San Diego Res. Center Inc., San Diego, CA ; Xiaofeng Han ; Chien-Chung Shen

In legacy wireless communication systems, spectrum allocation is static, resulting in extremely low spectrum utilization. On the other hand, there is little spectrum left for allocation to an increasing number of emerging wireless applications. A promising approach to solving this paradox is opening up most of the spectrum for unlicensed spectrum users in ways that co-exist with legacy users. Following this direction, this paper proposes the dynamic open spectrum sharing (DOSS) MAC protocol. This protocol allows nodes to adaptively select an arbitrary spectrum for the incipient communication subject to spectrum availability. It offers real-time dynamic spectrum allocation and high spectrum utilization without relying on any infrastructure. It also coexists with legacy wireless applications, while avoiding the hidden and exposed terminal problems. We conduct theoretical analysis of the protocol, and study its performance via simulations. In addition, we covers the radio receiver design

Published in:

New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005. 2005 First IEEE International Symposium on

Date of Conference:

8-11 Nov. 2005