1 research outputs found
Bit Error Rate Analysis of Cooperative Beamforming for Transmitting Individual Data Streams
Cooperative beamforming (CB) has been proposed as a special case of
coordinated multi-point techniques in wireless communications. In wireless
sensor networks, CB can enable low power communication by allowing a collection
of sensor nodes to transmit data simultaneously to a distant fusion center in
one hop. Besides the traditional CB approach where all nodes need to share and
transmit the same data, a more recent technique allows each node to transmit
its own data while still achieving the benefits of cooperation. However, the
intricacies of varying beamforming gains in the direct sequence spread spectrum
with binary frequency shift keying multiple access scheme used in this context
need to be taken into account when evaluating the performance of this
beamforming technique. In this paper, we take the first step towards a more
comprehensive understanding of this individual-data CB technique by proposing a
best suited decoding scheme and analyzing its bit error rate (BER) performance
over an additive white Gaussian noise channel. Through analytical expressions
and simulation results BER curves are drawn and the achieved performance
improvement offered by the CB gain is quantified.Comment: 6 pages, 5 figures, conference in IEEE ICC 201