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arXiv cs/0503040cs.ITmath.IT
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单宏小区/单微小区CDMA系统中的上行链路中继器及其对数据接入点的应用

Uplink Throughput in a Single-Macrocell/Single-Microcell CDMA System, with Application to Data Access Points

Shalinee Kishore, Stuart C. Schwartz, Larry J. Greenstein, H. Vincent Poor

摘要:

本文研究了一种两层CDMA系统,其中微小区基站被转换为数据接入点(DAP),即,一次为一个用户提供高速接入的有限范围基站。微小区(或DAP)用户工作在与宏小区用户相同的频率上,并具有相同的码片速率。然而,它根据干扰条件调整其扩频因子,并因此调整其数据率。相比之下,宏小区服务于多个同时的数据用户,每个用户具有相同的固定速率。单个微小区用户的可分配吞吐量进行检查,并提出了一个简单,准确的近似其概率分布。计算平均吞吐量,每个用户和总的,也提出了。数值结果突出的基础选择过程中使用的脱敏参数的影响。

英文摘要:

This paper studies a two-tier CDMA system in which the microcell base is converted into a data access point (DAP), i.e., a limited-range base station that provides high-speed access to one user at a time. The microcell (or DAP) user operates on the same frequency as the macrocell users and has the same chip rate. However, it adapts its spreading factor, and thus its data rate, in accordance with interference conditions. By contrast, the macrocell serves multiple simultaneous data users, each with the same fixed rate. The achieveable throughput for individual microcell users is examined and a simple, accurate approximation for its probability distribution is presented. Computations for average throughputs, both per-user and total, are also presented. The numerical results highlight the impact of a desensitivity parameter used in the base-selection process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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