Abstract
In this paper, a decode-and-forward cooperative interference-limited multiple relay network is considered. An efficient relay selection strategy and its performance analysis are proposed, where only the relay nodes are affected by multiple interferences. In the proposed relay selection scheme, the selected relay is not always used, depending on the power of interferences and the channel state information of all links, while the direct path between source and destination is always used. For analytical tractability the distribution of interference-limited channel is approximated as an exponential distribution with high accuracy. Analysis of cooperative networks with interference-limited relays can be performed using the approximate exponential distribution by the same methods which have been used without interferences. We derive the bit error probability and outage probability of the proposed opportunistic max-min relay selection (OMRS) scheme in independent non-identically distributed Rayleigh fading channels. Numerical results present the superiority of OMRS over the conventional relay selection scheme which always uses the selected relay path. The exactness of the approximate analysis for interference-limited relays is also shown in numerical results.
| Original language | English |
|---|---|
| Pages (from-to) | 247-264 |
| Number of pages | 18 |
| Journal | Wireless Personal Communications |
| Volume | 68 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
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Keywords
- Bit error probability
- Decode-and-forward (DF) relaying
- Max-min selection
- Multiple interferences
- Outage probability
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Science Applications
Cite this
Opportunistic decode-and-forward relaying with interferences at relays. / Kim, Sung Il; Kim, Saejoon; Kim, Joon Tae; Heo, Jun.
In: Wireless Personal Communications, Vol. 68, No. 2, 01.01.2013, p. 247-264.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Opportunistic decode-and-forward relaying with interferences at relays
AU - Kim, Sung Il
AU - Kim, Saejoon
AU - Kim, Joon Tae
AU - Heo, Jun
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this paper, a decode-and-forward cooperative interference-limited multiple relay network is considered. An efficient relay selection strategy and its performance analysis are proposed, where only the relay nodes are affected by multiple interferences. In the proposed relay selection scheme, the selected relay is not always used, depending on the power of interferences and the channel state information of all links, while the direct path between source and destination is always used. For analytical tractability the distribution of interference-limited channel is approximated as an exponential distribution with high accuracy. Analysis of cooperative networks with interference-limited relays can be performed using the approximate exponential distribution by the same methods which have been used without interferences. We derive the bit error probability and outage probability of the proposed opportunistic max-min relay selection (OMRS) scheme in independent non-identically distributed Rayleigh fading channels. Numerical results present the superiority of OMRS over the conventional relay selection scheme which always uses the selected relay path. The exactness of the approximate analysis for interference-limited relays is also shown in numerical results.
AB - In this paper, a decode-and-forward cooperative interference-limited multiple relay network is considered. An efficient relay selection strategy and its performance analysis are proposed, where only the relay nodes are affected by multiple interferences. In the proposed relay selection scheme, the selected relay is not always used, depending on the power of interferences and the channel state information of all links, while the direct path between source and destination is always used. For analytical tractability the distribution of interference-limited channel is approximated as an exponential distribution with high accuracy. Analysis of cooperative networks with interference-limited relays can be performed using the approximate exponential distribution by the same methods which have been used without interferences. We derive the bit error probability and outage probability of the proposed opportunistic max-min relay selection (OMRS) scheme in independent non-identically distributed Rayleigh fading channels. Numerical results present the superiority of OMRS over the conventional relay selection scheme which always uses the selected relay path. The exactness of the approximate analysis for interference-limited relays is also shown in numerical results.
KW - Bit error probability
KW - Decode-and-forward (DF) relaying
KW - Max-min selection
KW - Multiple interferences
KW - Outage probability
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U2 - 10.1007/s11277-011-0449-6
DO - 10.1007/s11277-011-0449-6
M3 - Article
VL - 68
SP - 247
EP - 264
JO - Wireless Personal Communications
JF - Wireless Personal Communications
SN - 0929-6212
IS - 2
ER -