Coping with CDMA Asynchronicity in Compressive Sensing Multi-User Detection

被引：8
|
作者：
Schepker, Henning F. [1 ]
Bockelmann, Carsten [1 ]
Dekorsy, Armin [1 ]
机构：
[1] Univ Bremen, Dept Commun Engn, D-28359 Bremen, Germany
来源：
2013 IEEE 77TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2013年
关键词：
D O I：
10.1109/VTCSpring.2013.6692494
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The growing field of Machine-to-Machine communication requires new physical layer concepts to meet future requirements. In previous works it has been shown for a synchronous CDMA transmission that Compressive Sensing (CS) detectors are capable of jointly detecting both activity and data in multi-user detection (MUD). However, many practical applications show some degree of asynchronicity. In order to reduce transmitter complexity, we propose an enhanced CS MUD that detects the delay in addition to activity and data. This solves synchronicity issues for scenarios with a known maximum delay, without requiring signaling or pre-compensation of asynchronicity.
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页数：5
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