Lookup NU author(s): Xzaoyan Feng,
Dr Charalampos Tsimenidis,
Emeritus Professor Oliver Hinton,
Professor Bayan Sharif
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A nonlinear multistage receiver employing parallel interference cancellation (PIC) is investigated for an asynchronous direct-sequence code-division multiple-access (DS/CDMA) channel in additive white Gaussian noise (AWGN). The cancellation processing simultaneously removes from each user the interference produced by the remaining users accessing the channel. Additionally, partial cancellation is also considered, which involves splitting of the corresponding bits of the interfering users into two parts with reference the desired user and estimating these two parts separately before attempting cancellation. The bit-error rate is analysed as a function of the signal-to-noise ratio (SNR) for different user populations. Furthermore, comparisons are made between the proposed partial PIC algorithm, the full-bit PIC and the conventional matched filter receiver. Simulations results demonstrate the advantage gained in performance by using the proposed partial PIC.
Author(s): Feng X, Tsimenidis CC, Hinton OR, Sharif BS
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 58th IEEE Vehicular Technology Conference
Year of Conference: 2003
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