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首页> 外文期刊>Canadian journal of electrical and computer engineering >Integrated rate, power and cell control in cellular CDMA systems: An interference- balancing approach
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Integrated rate, power and cell control in cellular CDMA systems: An interference- balancing approach

机译：蜂窝CDMA系统中的集成速率，功率和小区控制：一种干扰平衡方法

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摘要

In this paper, a novel combined rate, power and cell control scheme that minimizes transmit bit energy while gracefully implementing the congestion control is proposed and studied. The reverse link in a code division multiple access (CDMA) system with a high degree of traffic fluctuation temporally as well as spatially is considered. The proposed radio resource management scheme attempts to reduce the interference power variation among base station antennas that can exist in a real radio network. Transmission rates of those users in the congested (non-congested)cells are decreased (increased); hence, the proposed scheme is appropriate for delay-insensitive variable-bit-rate applications. Minimization of average transmit bit energy is achieved, subject to maintenance of individual target E_b/I_o for each user. Two algorithms, one directly minimizing the transmit bit energy, and the other doing so indirectly using the measured pilot power, are presented. It can be shown that both algorithms select the optimal base station if forward- and reverse-link gains are reciprocal; however, the latter gain is decentralized and uses only the local measurements and is amenable for practical implementation.
机译：在本文中，提出并研究了一种新颖的速率，功率和小区控制的组合方案，该方案在合理地实现拥塞控制的同时将传输位能量降至最低。考虑了在码分多址（CDMA）系统中在时间上和空间上具有高度业务波动的反向链路。所提出的无线电资源管理方案试图减少实际无线电网络中可能存在的基站天线之间的干扰功率变化。这些用户在拥塞（非拥塞）小区中的传输速率降低（增加）；因此，所提出的方案适合于对延迟不敏感的可变比特率应用。在维持每个用户各自的目标E_b / I_o的前提下，可实现平均发射位能量的最小化。提出了两种算法，一种直接将发射位能量最小化，另一种使用测得的导频功率间接进行。可以证明，如果前向和反向链路增益是倒数，则两种算法都会选择最佳基站。但是，后者的收益是分散的，仅使用本地测量，可​​以实际实施。

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