Results 101 to 110 of about 23,853 (156)

QoS Provisioning Relay Selection in Random Relay Networks

IEEE Transactions on Vehicular Technology, 2011
In this paper, we propose an analytical framework for determining the outage probability of random and best relay selection schemes given a Poisson field of relay nodes and the presence of path loss and fading. For relay selection, relays geographically close to the source and destination are preferred to others.
Wan Choi, Kaibin Huang
exaly   +4 more sources

Max-Max Relay Selection for Relays with Buffers

IEEE Transactions on Wireless Communications, 2012
In this paper, we propose a new relay selection scheme for half-duplex relays with buffers. The proposed scheme is referred to as max-max relay selection (MMRS) since the relays with the best source-relay and the best relay-destination channels are selected for reception and transmission, respectively, which is only possible without data loss if the ...
Aissa Ikhlef   +2 more
exaly   +2 more sources

Selective Relay-Activation for Conditional DF Relaying

IEEE Transactions on Communications, 2014
This paper considers a conditional decode-and-forward (DF) based cooperative system where a source (S) with multiple (M) antennas transmits information to a single-antenna destination (D) with the help of multiple (L ≤ M-1) single-antenna relays ({R_i}).
Shenghui Song 0001   +2 more
openaire   +2 more sources

A Novel Relay Selection Algorithm for Relaying Networks

2009 IEEE 70th Vehicular Technology Conference Fall, 2009
Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments. In a multiple-relay network, the opportunistic relay selection scheme has been shown to outperform any other strategy that involves the conventional all-participate scheme.
Nien-En Wu   +2 more
openaire   +1 more source

On the selection of relays' positions in diamond relay networks

Proceedings of the 6th International Wireless Communications and Mobile Computing Conference, 2010
Diamond relay network is a kind of efficient cooperative network, in which the source user selects two neighbors as relays and cooperates with both of them. In our previous work, we have studied its transmission rates for different coding and relaying schemes and proved that the performance of SRP scheme (Spatial Reuse Pattern) is better than others ...
Qing Wang 0004   +3 more
openaire   +1 more source

On the Position Selection of Relays in Diamond Relay Networks

IEEE Transactions on Communications, 2011
The diamond relay network is an efficient cooperative networking configuration in which the source node cooperates with two selected neighbors. For such networks, we investigate the impact of the relay positioning on the performance. In particular, considering an opportunistic protocol based on the use of relaying buffers, we provide sets of ...
Qing Wang 0004   +3 more
openaire   +2 more sources

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