Orthogonal Random Beamforming with Beam Selection for MISO Wiretap Broadcast Channels

被引：0

作者：

Wang, Lei ^{[1
]}

Wang, Zhuo ^{[2
]}

Pei, Minyan ^{[2
]}

机构：

[1] Naval Acad Armament, Beijing 100161, Peoples R China

[2] BUPT, Beijing 100876, Peoples R China

来源：

2016 2ND IEEE INTERNATIONAL CONFERENCE ON COMPUTER AND COMMUNICATIONS (ICCC) | 2016年

关键词：

orthogonal random beamforming; user scheduling; beam selection; MISO wiretap broadcast channel; secrecy; CAPACITY;

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：

This paper studies the downlink of a wireless system with an M-antenna base station, K single-antenna legitimate users and a single-antenna eavesdropper. A limited feedback-based scheduling and precoding scenario is considered that employs the orthogonal random beamforming (ORBF). The sum-rate of ORBF exhibits an identical growth rate as that of dirty paper coding for a large number of users. Unfortunately, for more realistic (low to moderate) K values, ORBF yields degraded performance. It is shown that having as many active beams as the number of transmit antennas is not always optimal for sparse network, thus scheduling strategies for ORBF with beam selection is investigated. Several user-beam selection algorithms featuring different complexity levels are proposed and their performance in terms of secrecy sum-rate is assessed. Numerical results are provided to illustrate the impact of the number of active beams on the secrecy performance.

引用

页码：1489 / 1493

页数：5

共 11 条

[1] On the achievable throughput of a multiantenna Gaussian broadcast channel [J].

Caire, G ;

Shamai, S .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2003, 49 (07) :1691-1706

[2] The Secrecy Capacity Region of the Gaussian MIMO Multi-Receiver Wiretap Channel [J].

Ekrem, Ersen ;

Ulukus, Sennur .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2011, 57 (04) :2083-2114

[3]

Geraci G., 2011, P 2011 IEEE INT S WI

[4] Secrecy Sum-Rates for Multi-User MIMO Regularized Channel Inversion Precoding [J].

Geraci, Giovanni ;

Egan, Malcolm ;

Yuan, Jinhong ;

Razi, Adeel ;

Collings, Iain B. .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2012, 60 (11) :3472-3482

[5] Multiple-antennas and isotropically random unitary inputs: The received signal density in closed form [J].

Hassibi, B ;

Marzetta, TL .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2002, 48 (06) :1473-1484

[6] Optimal beam subset and user selection for orthogonal random beamforming [J].

Kang, Tae-Sung ;

Kim, Hyung-Myung .

IEEE COMMUNICATIONS LETTERS, 2008, 12 (09) :636-638

[7] Enhanced Multiuser Random Beamforming: Dealing With the Not So Large Number of Users Case [J].

Kountouris, Marios ;

Gesbert, David ;

Salzer, Thomas .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2008, 26 (08) :1536-1545

[8] Secrecy Sum-Rate for Orthogonal Random Beamforming With Opportunistic Scheduling [J].

Krikidis, Ioannis ;

Ottersten, Bjoern .

IEEE SIGNAL PROCESSING LETTERS, 2013, 20 (02) :141-144

[9] On the capacity of MIMO broadcast channels with partial side information [J].

Sharif, M ;

Hassibi, B .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (02) :506-522

[10] Beam selection strategies for orthogonal random beamforming in sparse networks [J].

Vicario, Jose Lopez ;

Bosisio, Roberto ;

Anton-Haro, Carles ;

Spagnolini, Umberto .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2008, 7 (09) :3385-3396

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