Massive MIMO Channel-Aware Decision Fusion

被引：167
作者：
Ciuonzo, Domenico [1 ]
Rossi, Pierluigi Salvo [2 ,3 ]
Dey, Subhrakanti [4 ]
机构：
[1] Univ Naples Federico II, DIETI, I-80125 Naples, Italy
[2] Univ Naples 2, Dept Ind & Informat Engn, I-81031 Aversa, CE, Italy
[3] Norwegian Univ Sci & Technol, Dept Elect & Telecommun, N-7034 Trondheim, Norway
[4] Uppsala Univ, Div Signals & Syst, SE-75121 Uppsala, Sweden
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2015年 / 63卷 / 03期
关键词：
Decision fusion; distributed detection; large-scale MIMO; wireless sensor networks; DISTRIBUTED DETECTION; SENSOR NETWORKS; PERFORMANCE ANALYSIS; FADING CHANNELS; WIRELESS; TRANSMISSION; DEFLECTION; ANTENNAS; MAC;
D O I：
10.1109/TSP.2014.2376886
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we provide a study of channel-aware decision fusion (DF) over a "virtual" multiple-input multiple-output (MIMO) channel in the large-array regime at the DF center (DFC). The considered scenario takes into account channel estimation and inhomogeneous large-scale fading between the sensors and the DFC. The aim is the development of (widely) linear fusion rules, as opposed to the unsuitable optimum log-likelihood ratio (LLR). The proposed rules can effectively benefit from performance improvement via a large array, differently from existing suboptimal alternatives. Performance evaluation, along with theoretical achievable performance and complexity analysis, is presented. Simulation results are provided to confirm the findings. Analogies and differences with uplink communication in a multiuser (massive) MIMO scenario are underlined.
引用
收藏
页码：604 / 619
页数：16
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