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The Department of Computer & Information Sciences hosts The Mobiquitous Lab, which investigates user behaviour on mobile devices and emerging ubiquitous computing paradigms. The Strathclyde iSchool Research Group specialises in understanding how people search for information and explores interactive search tools that support their information seeking and retrieval tasks, this also includes research into information behaviour and engagement.

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Concurrent constant modulus algorithm and decision directed scheme for synchronous DS-CDMA equalisation

Hadef, M. and Weiss, S. (2005) Concurrent constant modulus algorithm and decision directed scheme for synchronous DS-CDMA equalisation. In: 2005 IEEE/SP 13th Workshop on Statistical Signal Processing (SSP),, 2005-07-17 - 2005-07-20.

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Abstract

In this paper, we derive a concurrent constant modulus algorithm (CMA) and decision directed (DD) scheme for blind multiuser equalisation, suitable for downlink DS-CDMA systems. Adaptation is performed by concurrently minimising two cost functions based on either a CM criterion or a DD scheme for all active users. Computer simulations are used to assess the performance of the algorithm.