固定分组长度的单跳无槽CDMA网络的吞吐量

M. Yin, Vu Li
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引用次数: 1

摘要

提出了一种计算具有确定分组长度的单跳无槽码分多址(CDMA)网络误码联合分布的递归方法。当干扰数超过某个阈值时,如果误码概率等于1,则该方法的计算复杂度随着M(每个数据包的比特数)呈多项式增长。L通道模型的复杂度为0 (M/sup 3/),该模型假设误码概率在阈值L以下为0,在阈值L以上为1。采用信道感知协议可以提高系统的吞吐量。
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Throughput of single-hop unslotted CDMA networks with fixed packet lengths
The authors present a recursive method to compute the joint distribution of bit errors for single-hop unslotted code-division multiple-access (CDMA) networks with deterministic packet lengths. The computational complexity of this method grows polynomially with M, the number of bits per packet, if the bit error probability equals 1 when the number of interferers exceeds a threshold. The complexity is O(M/sup 3/) for the L-channel model, which assumes that the probability of bit error is zero below the threshold L and 1 above the threshold. The throughput of the system can be improved by using a channel sensing protocol.<>
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