Performance Analysis of GFDMA and SC-FDMA in Rayleigh and Gaussian Fading Channel

被引：0
|
作者：
Jagenneevas, I. [1 ]
Dananjayan, P. [1 ]
机构：
[1] Pondicherry Engn Coll, Dept ECE, Pondicherry, India
来源：
PROCEEDINGS OF 2015 IEEE 9TH INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS AND CONTROL (ISCO) | 2015年
关键词：
GFDMA; SC-FDMA; CFO; Rayleigh and Gaussian fading channels; ITERATIVE MULTIUSER DETECTION; TRANSMISSION;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
OFDMA and SC-FDMA were chosen as strong candidates for uplink transmission in 3GPP-LTE. OFDMA is a full-fledged multicarrier modulation scheme but has the disadvantage of high PAPR. SC-FDMA achieves low PAPR by spreading the constellation points over entire bandwidth but lacks efficient spectral utilization and prone to Inter Carrier Interference ( ICI) at cell edge. Grouped Frequency Division Multiple Access ( GFDMA) is a modified version of SC-FDMA that combines SC-FDMA with IMD-FDE to provide multi-user detection capability. Unlike SC-FDMA, GFDMA suffers from Carrier Frequency Offset ( CFO) that arises due to Multiple Access Interference ( MAI). To select a transmission scheme that offers more resistance to adverse channel conditions and provide better performance, impact of CFO in GFDMA and SC-FDMA systems will be evaluated by channel estimation techniques under Rayleigh and Gaussian fading channels.
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页数：5
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