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Accurate DS-CDMA Packet-Error Rate Analysis in Rayleigh Fading

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1 Author(s)
Hamdi, K.A. ; Sch. of Electr. & Electron. Eng., Manchester Univ.

We present new packet-error rate (PER) analysis for both slotted and unslotted direct-sequence spread-spectrum packet communication systems in a slow Rayleigh fading environment. Based on the accurate improved Gaussian approximation, we derive closed-form expressions for the cumulative probability distribution function of the signal-to-interference-plus-noise ratio in binary phase-shift keying (PSK), quadratic PSK, and differential PSK-based code-division multiple-access (CDMA) systems having different types of chip waveforms including bandwidth-efficient waveforms. This leads to new accurate unified expressions for the PERs that account for bit-to-bit error dependence, which are valid for packets with unequal power levels. These new results facilitate accurate computation of the throughput performance of CDMA-based ALOHA local radio networks

Published in:

Communications, IEEE Transactions on  (Volume:55 ,  Issue: 3 )

Date of Publication:

March 2007

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