On ping-pong effects in linear interference cancellation for CDMA | IEEE Conference Publication | IEEE Xplore

On ping-pong effects in linear interference cancellation for CDMA


Abstract:

In this paper we formulate a general iterative form to described hybrid interference cancellation, a concept which includes both successive interference cancellation (SIC...Show More

Abstract:

In this paper we formulate a general iterative form to described hybrid interference cancellation, a concept which includes both successive interference cancellation (SIC) and parallel interference cancellation (PIC) as its two extreme cases. Furthermore, the ping-pong effect commonly observed in linear PIC is studied in detail and is shown to be a direct consequence of the extreme eigenvalues of the iteration matrix. Intervals for the dominating eigenvalues within which ping-pong is likely to occur are specified. These intervals are then used to determine weighting factors for partial cancellation such that ping-pong effects are avoided.
Date of Conference: 06-08 September 2000
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-6560-7
Conference Location: Parsippany, NJ, USA
Telecommunication Theory Research Group, Department of Computer Engineering, Chalmers University of Technology, Gothenburg, Sweden

Telecommunication Theory Research Group, Department of Computer Engineering, Chalmers University of Technology, Gothenburg, Sweden

References

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