Distributed transmit beamforming with 1-bit feedback for LoS-MISO channels

Author

Hanif, Ahmed Farhan ; Tembine, Hamidou ; Assaad, Mohamad ; Zeghlache, Djamal

Author_Institution

RS2M Dept., Telecom SudParis, Paris, France

fYear

2013

fDate

16-19 June 2013

Firstpage

455

Lastpage

459

Abstract

In this paper we develop a distributed transmit beamforming method for a Multiple Input Single Output (MISO) line of sight (LoS) channel requiring only one bit in feedback. We consider the case where several non cooperating transmitters are using the same frequency band without exchanging any information between each others. Each transmitter receives only 1-bit feedback from its own receiver. We develop a Nash seeking based precoder that adapts the Direction of Transmission (DoT) in such a way to maximize the probability of successful transmission of each transmitter. We also present numerical results which corroborate our claim.

Keywords

array signal processing; precoding; radio receivers; radio transmitters; telecommunication channels; DoT; LoS-MISO channels; Nash seeking; direction of transmission; distributed transmit beamforming; line of sight channel; multiple input single output channels; noncooperating transmitters; precoder; receiver; word length 1 bit; Array signal processing; Equations; Interference; Mathematical model; Nash equilibrium; Receivers; Transmitters; Beamforming; Extremum Seeking; Interference Avoidance; Non Cooperative Games; Sinus Framework;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2013 IEEE 14th Workshop on

Conference_Location

Darmstadt

ISSN

1948-3244

Type

conf

DOI

10.1109/SPAWC.2013.6612091

Filename

6612091