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An Optimal Asynchronous IDMA Receiver

Senanayake, Bathiya; Reed, Mark; Shi, Zhenning


In this paper we develop an optimal receiver for an asynchronous IDMA system. A super-block structure is used to formulate the band diagonal matrix model for asynchronous IDMA. We show that the cost function for the ML decoder can be viewed as a path metric through a structured trellis. We use a dynamic programming algorithm to find the maximum likelihood transmitted bit sequence. We compare the performance of the optimal receiver with the conventional iterative receiver. Our results show that...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Conference paper
Source: Proceedings of the Australian Communications Theory Workshop (AusCTW 2009)
DOI: 10.1109/AUSCTW.2009.4805595


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