For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A Low-Complexity Ordered Sphere Decoding Algorithm for Spatial Modulation
Ping YANG Yue XIAO Qian TANG Bin ZHOU Shaoqian LI
IEICE TRANSACTIONS on Communications
Publication Date: 2012/07/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MF, MIMO, OSD, SM,
Full Text: PDF>>
In this letter, an ordered sphere decoding (OSD) algorithm for spatial modulation (SM) is proposed to reduce receiver complexity. The proposed algorithm relies on a developed matched filter (MF), where the initial solution vector is obtained and the transmit-antenna set is sorted, so as to perform a fast tree search. Furthermore, a threshold parameter is introduced to balance the tradeoff between complexity and performance. Simulation results show that the proposed SM-OSD algorithm achieves considerable complexity reduction compared to the SM-SD, especially in unbalanced multiple-input multiple output (MIMO) channels.