Iterative Frequency Domain Equalization for Single Carrier Signals with Magnitude Modulation Techniques

被引:0
|
作者
Gomes, Marco [1 ,2 ]
Dinis, Rui [1 ,3 ]
Silva, Vitor [1 ,2 ]
Cercas, Francisco [1 ,4 ]
Tomlinson, Martin [5 ]
机构
[1] Inst Telecomunicacoes, Aveiro, Portugal
[2] Univ Coimbra, DEEC, P-3030290 Coimbra, Portugal
[3] FCT UNL, P-2829516 Caparica, Portugal
[4] ISCTE IUL, P-1649026 Lisbon, Portugal
[5] Univ Plymouth, Plymouth PL4 8AA, Devon, England
来源
2012 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | 2012年
关键词
IB-DFE; Magnitude Modulation; PAPR; POWER;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
In this paper we consider broadband wireless systems with high power efficiency. For this purpose we employ MM (Magnitude Modulation) techniques to reduce the PAPR (Peak-to-Average Power Ratio) of the transmitted signals, allowing efficient power amplification. Designed transceivers combine MM with SC-FDE (Single-Carrier with Frequency-Domain Equalization) methods upon iterative-block decision feedback equalization (IB-DFE). Since IB-DFE schemes designed for conventional SC signals are not suitable when we employ PAPR-reduction techniques, the effect of MM is taken into account on the estimation reliability factor that drives IB-DFE convergence. Results for the new proposed MM-IBDFE transceiver present gains above 1.5dB in the overall power efficiency, even when considering severely time-dispersive channels.
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页数:5
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