- タイトル
- Accurate DS-CDMA packet-error rate analysis in Rayleigh fading
- 著者
- K.A.Hamdi
- 出典
- IEEE Trans. Commun.,
vol.55, no.3, pp.551-562,
2007/03.
- キーワード
- DS-CDMA, packet error probability, Rayleigh fading, throughput, spread ALOHA, slotted ALOHA, pure ALOHA, Poisson arrival
- 概要
- 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.
- 分類
- [SST]直接拡散アロハ：スロット付ALOHA (No.5419)