Adaptive successive interference cancellation for the IS-95 uplink

Kuei Chiang Lai, John J. Shynk, Madam Motamed, Richard P. Gooch

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

In this paper, we examine an adaptive successive interference canceler (ASIC) that can separate direct-sequence code-division-multiple-access (DS/CDMA) signals for the IS-95 (Interim Standard 95) uplink under near-far conditions, i.e., without power control. The ASIC employs a multistage architecture where each stage consists of a conventional matched filter (MF) detector with equal gain combining (EGC), followed by an adaptive interference canceler (AIC) that is adjusted by the least-mean-square (LMS) algorithm to track time-varying multipath channels. Variants of the basic ASIC architecture which exploit the specific structure of the IS-95 uplink traffic channel are also discussed. The bit-error-rate (BER) performance of the ASIC is compared with that of other interference cancelers, demonstrating the effectiveness of the ASIC for near-far scenarios.

Original languageEnglish
Pages (from-to)1187-1192
Number of pages6
JournalIEEE Vehicular Technology Conference
Volume3
Issue number52 ND
Publication statusPublished - 2000 Dec 1
Event52nd Vehicular Technology Conference (IEEE VTS Fall VTC2000) - Boston, MA, USA
Duration: 2000 Sep 242000 Sep 28

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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