Pilot-Aided Side Information Detection in SLM-Based OFDM Systems

被引：29

作者：

Hong, Eonpyo ^{[1
]}

Kim, Hyunju ^{[1
]}

Yang, Kyeongcheol ^{[2
]}

Har, Dongsoo ^{[3
]}

机构：

[1] Agcy Def Dev, Taejon 305152, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Dept Elect Engn, Pohang 790784, Gyungbuk, South Korea

[3] Korea Adv Inst Sci & Technol, Cho Chun Shik Grad Sch Green Transportat, Taejon 305701, South Korea

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2013年 / 12卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

PAPR; side information; blind SLM; low complexity decoding; PAPR REDUCTION;

D O I：

10.1109/TWC.2013.061713.120280

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Selected mapping (SLM) based schemes effectively reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) systems. However, they require side information (SI) transmission, which incurs a loss in the data throughput in addition to the increased system complexity. This paper presents a blind SLM scheme based on a decision metric obtained from pilot sub-channel responses. A novel SI detection method enabling low complexity data decoding is proposed. The SI is detected by exploiting the high autocorrelation between adjacent pilot sub-channel responses. The SI detection error rate is analytically derived and compared with that obtained by simulations. Simulation results of the data decoding scheme based on the proposed SI detection method show the bit error rate performance comparable to that of the simplified maximum likelihood (ML) data decoding scheme, while the computational complexity is close to that of the embedded SI based decoding scheme.

引用

页码：3140 / 3147

页数：8

共 13 条

[1]

[Anonymous], 2002, Wireless Communications: Principles and Practice

[2]

[Anonymous], 2005, Wireless Communications

[3] Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping [J].