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首页> 外文期刊>Communications Letters, IEEE >User in the Loop: Mobility Aware Users Substantially Boost Spectral Efficiency of Cellular OFDMA Systems
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User in the Loop: Mobility Aware Users Substantially Boost Spectral Efficiency of Cellular OFDMA Systems

机译：处于循环中的用户：移动意识的用户大大提高了蜂窝OFDMA系统的频谱效率

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摘要

Wireless cellular networks perform with a system spectral efficiency which depends on the user terminal distribution over the cell area. Due to the adaptive modulation and coding schemes used which depend on the signal-to-interference+noise (SINR) ratio, the achievable data rate is typically an order of magnitude higher in the cell center compared to the cell edge. The performance of IMT-Advanced cellular radio systems like IEEE 802.16m and 3GPP LTE-A will strongly depend on algorithms to cope with the low SINR in the service area. The new paradigm introduced in this paper motivates users to opportunistically change location according to operator recommendation displayed on the user terminal to achieve a much better SINR than currently available. Benefits are the increase of network capacity and higher data rates or potentially a financial incentive for the convinced users. Numeric results based on analysis of IMT scenarios are provided suggesting large cell spectral efficiency gains.
机译：无线蜂窝网络以系统频谱效率来执行，该频谱效率取决于用户终端在小区区域上的分布。由于所使用的自适应调制和编码方案取决于信噪比（SINR）比，因此与小区边缘相比，在小区中心可实现的数据速率通常高一个数量级。像IEEE 802.16m和3GPP LTE-A这样的IMT-Advanced蜂窝无线系统的性能将在很大程度上取决于算法，以应对服务区域中的低SINR。本文介绍的新范例激励用户根据在用户终端上显示的操作员建议来机会性地更改位置，以实现比当前可用的更好的SINR。好处是网络容量的增加和更高的数据速率，或者说服说服用户的潜在经济动机。提供了基于对IMT方案分析的数值结果，表明获得了较大的小区频谱效率。

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