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Cooperative MAC and routing protocols for wireless ad hoc networks

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3 Author(s)
A. Azgin ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; Y. Altunbasak ; G. AlRegib

Cooperative diversity techniques exploit the spatial characteristics of the network to create transmit-diversity, in which the same information can be forwarded through multiple paths towards a single destination or a set of destination nodes. In this paper, we study the integration of cooperative diversity into wireless routing protocols by developing distributed cooperative MAC (C-MAC) and routing protocols. The proposed protocols employ efficient relay selection-coordination and power allocation techniques to maximize the cooperation benefits in the network. Simulation results show that the energy-saving performance of the minimum-energy routing protocols can be significantly improved when they are implemented together with the proposed C-MAC protocol (%50). We also show that the performance of the C-MAC protocol can be further enhanced when the initial path is selected using the cooperation characteristics of the network (%11 more energy-savings compared to the previous case, i.e., C-MAC with minimum-energy routing)

Published in:

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.  (Volume:5 )

Date of Conference:

2-2 Dec. 2005