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arXiv 2308.00543cs.ITeess.SPmath.IT
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具有有限块长的ISAC系统的性能折中

On the Performance Tradeoff of an ISAC System with Finite Blocklength

Xiao Shen, Na Zhao, Yuan Shen

AI总结:

本文研究了有限块长下SISO ISAC系统的感知与通信性能折中,推导了速率-误差折中界并证明性能折中随块长增大而消失,仿真验证了理论分析。

摘要:

集成感知与通信(ISAC)已被提出作为未来无线网络中的一种有前景的范式,其中频谱和硬件资源被共享以提供可观的性能增益。理解感知与通信(S&C)如何相互影响对于指导ISAC中的实际算法和系统设计至关重要。本文研究了具有有限块长的单输入单输出(SISO)ISAC系统中S&C之间的性能折中。具体而言,我们提出了系统模型和ISAC方案,随后引入速率-误差折中作为性能指标。然后我们推导了速率-误差折中的可达性和逆界,确定了联合S&C性能的边界。此外,我们开发了在大块长体制下的渐近分析,其中S&C之间的性能折中被证明随着块长趋于无穷大而消失。最后,我们的理论分析得到了仿真结果的证实。

英文摘要:

Integrated sensing and communication (ISAC) has been proposed as a promising paradigm in the future wireless networks, where the spectral and hardware resources are shared to provide a considerable performance gain. It is essential to understand how sensing and communication (S\&C) influences each other to guide the practical algorithm and system design in ISAC. In this paper, we investigate the performance tradeoff between S\&C in a single-input single-output (SISO) ISAC system with finite blocklength. In particular, we present the system model and the ISAC scheme, after which the rate-error tradeoff is introduced as the performance metric. Then we derive the achievability and converse bounds for the rate-error tradeoff, determining the boundary of the joint S\&C performance. Furthermore, we develop the asymptotic analysis at large blocklength regime, where the performance tradeoff between S\&C is proved to vanish as the blocklength tends to infinity. Finally, our theoretical analysis is consolidated by simulation results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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