论文标题
传感编码:改进了MAC的集成感测和通信的方案
Coding for Sensing: An Improved Scheme for Integrated Sensing and Communication over MACs
论文作者
论文摘要
考虑了无内存依赖性的多个访问通道(MAC),其中两个发射器希望通过广义反馈同时传感(估算)各个状态,将其消息传达给单个接收器。对于此渠道,基本利率延伸的权衡提供了改进的内部界限,该限制的特征是发射机可以实现的交流率,同时确保其州估计其所需的失真标准。新的内部结合基于一个方案,其中每个发射器代码在广义反馈上,以改善其他发射器的状态估计。这与针对点对点和广播通道所提出的方案形成鲜明对比,该方案仅用于传输消息,而最佳估计器在通道输入和反馈输出的序列上以符号为单位的基础运行。
A memoryless state-dependent multiple-access channel (MAC) is considered, where two transmitters wish to convey their messages to a single receiver while simultaneously sensing (estimating) the respective states via generalized feedbacks. For this channel, an improved inner bound is provided on the fundamental rate-distortions tradeoff which characterizes the communication rates the transmitters can achieve while simultaneously ensuring that their state-estimates satisfy desired distortion criteria. The new inner bound is based on a scheme where each transmitter codes over the generalized feedback so as to improve the state estimation at the other transmitter. This is in contrast to the schemes proposed for point-to-point and broadcast channels where coding is used only for the transmission of messages and the optimal estimators operate on a symbol-by-symbol basis on the sequences of channel inputs and feedback outputs.