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Performance Analysis of a Fixed-point Successive Interference Canceller for WCDMA

Hongxia Zhao (Institutionen för signaler och system, Kommunikationssystem) ; Tony Ottosson (Institutionen för signaler och system, Kommunikationssystem) ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem) ; Anna Kidiyarova-Shevchenko
Proceedings Vehicular Technology Conference Fall, Los Angeles, California, USA, SEP 26-29, 2004 (2004)
[Konferensbidrag, refereegranskat]

In this paper we study the problem of implementing a successive interference canceller (SIC) for a WCDMA system in fixed-point electronics. Typically, fixed-point implementation is based on an iterative design of simulations and experience, resulting in a time-consuming and inefficient process. From the experience of a conventional design with simulations, we make a model of the fixed-point SIC. The advantage with this model is that it can be analyzed and hence be used to predict the performance of a fixed-point implementation with given precision. Simulations indicate that the analysis agrees well for moderate system load and especially for the high precision case. which is the case of most interest. Hence, it much simplifies the design procedure of fixed-point implementation of SIC.

Nyckelord: 3G mobile communication, cellular radio, code division multiple access, fixed point arithmetic, interference suppression



Denna post skapades 2006-09-12. Senast ändrad 2013-06-12.
CPL Pubid: 15239

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Information Technology

Chalmers infrastruktur

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