Capacity of MIMO MANETs with cooperation

Authors:
Renato M. de Moraes;Hamid R. Sadjadpour;J. J. Garcia-Luna-Aceves
Affiliations:
University of California, Santa Cruz, CA;University of California, Santa Cruz, CA;Palo Alto Research Center, Palo Alto, CA
Venue:
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Year:
2006

Citing 5
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Abstract

We introduce a new communication scheme for mobile wireless ad hoc networks (MANETs) utilizing the concept of cooperative many-to-many communication, called opportunistic cooperation1, as opposed to the traditional approach that emphasizes on point-to-point communication. In the new paradigm, the adjacent nodes no longer interfere with each other but rather cooperate. Our analysis is for MANETs when all the nodes in the network are endowed with M antennas. We derive two upper bounds on the ergodic capacity per node in the network. These upper bounds are compared with Monte-Carlo simulation of point-to-point and many-to-many communications. We show that one of our upper bounds is a tight bound. Also, we demonstrate that the capacity of MANETs with multiple antennas is improved significantly using cooperation as compared to non-cooperative schemes, i.e., point-to-point communication.