Title :
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
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;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2013 IEEE 14th Workshop on
Conference_Location :
Darmstadt
DOI :
10.1109/SPAWC.2013.6612091