Shared Relay Assignment (SRA) for Many-to-One Traffic in Cooperative Networks

Shared Relay Assignment (SRA) for Many-to-One Traffic in Cooperative Networks

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Relay assignment significantly affects the performance of the cooperative communication, which is an emerging technology for the future mobile system. Previous studies in this area have mostly focused on assigning a dedicated relay to each source destination pair for one-to-one (121) traffic. However, many-to-one (M21) traffic, which is also common in many situations (for example, several users associate with one access point in a wireless access network such as a WLAN), hasn’t been well studied. This paper addresses the shared relay assignment (SRA) problem for M21 traffic. Formulate two new optimization problems: one is to maximize the minimum throughput among all the sources (hereafter called M21-SRA-MMT), and the other is to maximize the total throughput over all the sources while maintaining some degree of fairness.

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