Results 281 to 290 of about 103,505 (332)

Distributed Decode and Forward Beamforming

37th Annual IEEE Conference on Local Computer Networks, 2012
Distributed transmit beamforming is a wireless communication technique in which multiple independent antennas transmit a common message while controlling their transmitted carrier phases to constructively interfere the message at a destination. Depending on the transmission goals and choice of network parameters, certain noteworthy benefits arise from ...
Chris Walsh   +2 more
openaire   +1 more source

Cooperative Fading Regions for Decode and Forward Relaying

IEEE Transactions on Information Theory, 2008
Cooperative transmission protocols over fading channels are based on a number of relaying nodes to form virtual multi-antenna transmissions. Diversity provided by these techniques has been widely analyzed for the Rayleigh fading case. However, short range or fixed wireless communications often experience propagation environments where the fading ...
SAVAZZI, STEFANO, SPAGNOLINI, UMBERTO
openaire   +2 more sources

ML Decoder for Decode-and-Forward Based Cooperative Communication System

IEEE Transactions on Wireless Communications, 2011
Decode-and-forward (DF) protocol based cooperative communication is vulnerable to the erroneous relaying by the relay. In this paper, we derive a maximum-likelihood (ML) decoder for the DF protocol utilizing arbitrary complex-valued constellations including M-PSK, M-PAM, and M-QAM.
Manav R. Bhatnagar, Are Hjorungnes
openaire   +1 more source

ML decoding in decode-and-forward based cooperative communication system

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In this paper, we derive a maximum-likelihood (ML) decoder of the decode-and-forward (DF) protocol utilizing an arbitrary complex-valued M-point constellation. Existing decoders of the DF based cooperative systems are applicable only to real-valued constellations like BPSK and M-PAM, hence, also to square M2-QAM.
Manav R. Bhatnagar, Are Hjorungnes
openaire   +1 more source

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