A Fading-Insensitive Performance Metric for a Unified Link Quality Model

被引:0
作者
Wan, Lei [1 ]
Tsai, Shiauhe [2 ]
Almgren, Magnus [3 ]
机构
[1] Ericsson China Co Ltd, China 7 Guang Hua Rd, Beijing 100004, Peoples R China
[2] Ericsson Inc, San Diego, CA 92121 USA
[3] Ericsson Co Ltd, Stockholm, Sweden
来源
2006 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC 2006), VOLS 1-4 | 2006年
关键词
Information rates; Fading Channels; Channel Coding; Modeling; Error analysis; Communication systems; OFDM;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Link quality model is widely used in system evaluations to simplify the simulation complexity. It is also important in practical systems for improving the accuracy of the link adaptation and the efficiency of radio-resource-management. Conventional linear average SNR characterization of fading channel performance lacks generality, since the same linear SNR value may lead to drastic block error rate differences in various fading channels. A unified metric is proposed in this paper for link performance characterization and quality modeling. This paper proposes a mutual-information-based (MI-based) link quality model, which contains separate modulation and coding models. The modulation model maps the received SNR to the mutual information symbol by symbol. The coding model maps the sum or average of the mutual information to decoding performance for each coding block. The existing methods based on the effective signal-to-noise-ratio (SNR) of a multi-state channel have limited accuracy in the mixed modulation cases. Compared with the existing models, the MI-model is simpler and easier to apply to mixed-modulation cases and different H-ARQ schemes. The simulation results verify the accuracy in different multi-state channels and give the comparison with the exponential effective-SNR-mapping (EESM) model.
引用
收藏
页码:2110 / 2114
页数:5
相关论文
共 7 条
[1]  
*3GPP2, 2004, 3GPP2CP1002C0
[2]  
[Anonymous], C80216E05141R1 IEEE
[3]  
Cheng J.-F., 2004, IEEE INFORM THEO JUN
[4]  
Kim J., 2003, 3GPP2C302003041434
[5]  
PAULI M, 2004, Patent No. 20040219883
[6]  
Tsai S., 2003, 3GPP2C3020030429010
[7]  
Wang H., 2005, HSDPA LINK ADAPTATIO