Title
Differential Modulation Exploiting the Spatial–Temporal Correlation of Wireless Channels With Moving Antenna Array
Abstract
Provisioning reliable wireless services for railway passengers is becoming an increasingly critical problem to be addressed with the fast development of high speed trains (HST). In this paper, exploiting the linear mobility inherent to the HST communication scenario, we discover a new type of spatial-temporal correlation between the base station and moving antenna array on the roof top of the train. Capitalizing on the new spatial-temporal correlation structure and properties, an improved differential space-time modulation (DSTM) scheme is proposed. Analytical expressions are obtained for the pairwise error probability of the system. It is demonstrated that the proposed approach achieves superior error performance compared with the conventional DSTM scheme. In addition, an adaptive method, which dynamically adjusts the transmission block length is proposed to further enhance the system performance. Numerical results are provided to verify the performance of the proposed schemes.
Year
DOI
Venue
2015
10.1109/TCOMM.2015.2495280
IEEE Trans. Communications
Keywords
Field
DocType
Correlation,Modulation,Antenna arrays,Receiving antennas
Base station,Pairwise error probability,Wireless,Expression (mathematics),Computer science,Communication channel,Antenna array,Electronic engineering,Modulation,Train
Journal
Volume
Issue
ISSN
63
12
0090-6778
Citations 
PageRank 
References 
1
0.35
13
Authors
5
Name
Order
Citations
PageRank
Z. Zhang12308198.54
Chunxu Jiao263.48
Caijun Zhong32007120.77
Huazi Zhang428924.91
Yu Zhang5374.55