Performance bounds on chip-matched-filter receivers for bandlimited DS/SSMA communications
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- Title
- Performance bounds on chip-matched-filter receivers for bandlimited DS/SSMA communications
- Authors
- Jeong, YK; Cho, JH; Lehnert, JS
- Date Issued
- 2005-01
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- Performance bounds on chip-matched-filter (CMF) receivers for bandlimited direct-sequence spread-spectrum multiple-access (BL-DS/SSMA) systems with aperiodic random spreading sequences are obtained. First, the optimum transmit-receive chip waveform pairs that maximize the conditional signal-to-interference ratio are derived. This leads to performance bounds on CMF receivers when the conditional Gaussian approximation for cyclostationary multiple-access interference (MAI) is exploited. The bounds are used to examine the dependence of the MIA suppression capability of the CMF receivers on the excess bandwidth of the system and the delay profile of multiple-access users. The system employing the flat-spectrum chip waveform pair is shown to have near-optimum average bit-error rate performance among the fixed CMF (FCMF) receiver systems. Numerica results are provided for an adaptive CMF receiver and for FCMF receivers employing several different fixed chip waveform.
- Keywords
- chip waveform; code-division multiaccess (CDMA); interference suppression; linear receiver; spread spectrum; NOISE-WHITENING APPROACH; WAVE-FORM DESIGN; SYSTEMS; SEQUENCES; INTERFERENCE; MODULATION; REJECTION; PHASE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24799
- DOI
- 10.1109/TCOMM.2004.840626
- ISSN
- 0090-6778
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 53, no. 1, page. 131 - 141, 2005-01
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