Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method
Husheng Li, H. V. Poor
TL;DR
This paper analyzes how channel estimation errors affect multiuser detection performance in wireless DS-CDMA systems using the replica method, providing insights into system behavior under realistic imperfect conditions.
Contribution
It introduces a novel application of the replica method to evaluate the impact of channel estimation errors on various MUD schemes in large systems.
Findings
Performance degradation due to estimation errors quantified
Optimal, linear, and turbo MUD performance analyzed
Results validated with finite system simulations
Abstract
For practical wireless DS-CDMA systems, channel estimation is imperfect due to noise and interference. In this paper, the impact of channel estimation errors on multiuser detection (MUD) is analyzed under the framework of the replica method. System performance is obtained in the large system limit for optimal MUD, linear MUD and turbo MUD, and is validated by numerical results for finite systems.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsWireless Communication Networks Research · Advanced Wireless Communication Techniques · Advanced Wireless Network Optimization