论文标题
上行链路云无线电访问网络的整数构造
Integer-Forcing Architectures for Uplink Cloud Radio Access Networks
论文作者
论文摘要
考虑一个上行链路无线电访问网络，该网络通过几个基站同时观察用户，每个基站都有一个限制链接到中央处理器，该链接希望解释所有传输消息。最近的努力证明了基于压缩的策略的优势，这些策略将量化的渠道观察结果发送给中央处理器，而不是尝试本地解码。我们研究了在发射机上无法获得通道状态信息的设置，而是在基站完全或部分知道的设置。我们为基于压缩的上行云无线电访问提供了一个端到端整数框架，并表明如果基本台上的通道状态信息完全可用，则它在最佳中断概率中的恒定差距内运行。我们通过模拟证明，我们的框架与基于Wyner-Ziv的最先进的策略具有竞争力。
Consider an uplink cloud radio access network where users are observed simultaneously by several base stations, each with a rate-limited link to a central processor, which wishes to decode all transmitted messages. Recent efforts have demonstrated the advantages of compression-based strategies that send quantized channel observations to the central processor, rather than attempt local decoding. We study the setting where channel state information is not available at the transmitters, but known fully or partially at the base stations. We propose an end-to-end integer-forcing framework for compression-based uplink cloud radio access, and show that it operates within a constant gap from the optimal outage probability if channel state information is fully available at the base stations. We demonstrate via simulations that our framework is competitive with state-of-the-art Wyner-Ziv-based strategies.
