Iterative Joint Optimization of CDMA Signature Sequences and Receiver Filters
Şennur Ulukuş, Aylin Yener · 2002
Optimization of the capacity of a single cell Code Division Multiple Access (CDMA) system, both from the perspec- tive of the maximum number of users that can be served at a required quality of service level and from the information theo- retic perspective, has been recently shown to be achieved by the same joint transmit and receive strategies. In this work, we pro- pose an alternating minimization based iterative algorithm that updates the transmitters and the corresponding receivers of the users. The algorithm is suitable for online implementation in contrast with previously proposed algorithms. We show that the algorithm is provably convergent to the optimum signature se- quences and the corresponding receivers.