Multiple-access capacity gains using multiuser detection under uniform linear power spacing

J. Niedzwiecki, B. Hombs, J. Farkas, Yiftach Eisenberg, J. Tranquilli
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引用次数: 3

Abstract

This paper reviews the driving factors that affect performance gains in wireless networks when receivers are enabled by multiuser detection (MUD). Assuming the many-to-one, Gaussian multiple-access channel, we compare the capacity of a jointly optimal MUD receiver with the single user match filter using TDMA, FDMA and orthogonal CDMA access schemes. Comparisons are made under both equal power and unequal power conditions. Unequal power cases are constrained to uniform linear power spacing where the received powers are equally spaced over a given power spread. Motivation for this analysis is to better understand what multiple-access schemes will realize the highest potential improvements by incorporating MUD technology and under what system constraints those gains are maximized.
在均匀线性功率间隔下使用多用户检测获得多址容量
本文回顾了当接收器启用多用户检测(MUD)时,影响无线网络性能提升的驱动因素。假设多对一高斯多址信道,我们比较了联合最优MUD接收机与使用TDMA、FDMA和正交CDMA接入方案的单用户匹配滤波器的容量。在等功率和不等功率条件下进行了比较。不相等功率的情况被限制为均匀的线性功率间隔,其中接收到的功率在给定的功率范围内间隔相等。进行此分析的动机是为了更好地了解通过合并MUD技术,哪些多址方案将实现最大的潜在改进,以及在哪些系统约束下,这些增益将最大化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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