Abstract
The opportunistic relaying in [1] was proposed as an efficient cooperative protocol in the wireless multi-hop systems. However, the opportunistic relaying may still have high complexity as the number of relay nodes increases since the link quality of the paths generated by multiple relay nodes should be monitored. In this paper, we propose a novel multi-hop relay protocol named ?switch and examine node selection? (SENS), where the relay node is selected if its link quality is above a certain threshold which is set to satisfy the required performance and the selected link is maintained unless its link quality does not fall below the threshold. From our derived statistics of the received output signal-to-noise ratio (SNR), we obtain the optimal threshold in terms of the link performance such as the average output SNR, the outage probability, and average error rate. Using the optimal threshold, we show from the analytical and numerical results that the performance of our proposed SENS protocol provides the same performance as the opportunistic relaying protocol while the complexity of our proposed scheme is much lower than the one of opportunistic system.
| Original language | English |
|---|---|
| Title of host publication | IWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference |
| Pages | 469-474 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2007 Dec 14 |
| Event | IWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference - Honolulu, HI, United States Duration: 2007 Aug 12 → 2007 Aug 16 |
Other
| Other | IWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 07/8/12 → 07/8/16 |
Fingerprint
Keywords
- Cooperative system
- Opportunistic relaying
- Regenerative transmission
ASJC Scopus subject areas
- Computer Networks and Communications
- Software
- Electrical and Electronic Engineering
Cite this
Switch-and-examine node selection for efficient relaying systems. / Hwang, Kyu Sung; Ko, Young-Chai.
IWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference. 2007. p. 469-474.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Switch-and-examine node selection for efficient relaying systems
AU - Hwang, Kyu Sung
AU - Ko, Young-Chai
PY - 2007/12/14
Y1 - 2007/12/14
N2 - The opportunistic relaying in [1] was proposed as an efficient cooperative protocol in the wireless multi-hop systems. However, the opportunistic relaying may still have high complexity as the number of relay nodes increases since the link quality of the paths generated by multiple relay nodes should be monitored. In this paper, we propose a novel multi-hop relay protocol named ?switch and examine node selection? (SENS), where the relay node is selected if its link quality is above a certain threshold which is set to satisfy the required performance and the selected link is maintained unless its link quality does not fall below the threshold. From our derived statistics of the received output signal-to-noise ratio (SNR), we obtain the optimal threshold in terms of the link performance such as the average output SNR, the outage probability, and average error rate. Using the optimal threshold, we show from the analytical and numerical results that the performance of our proposed SENS protocol provides the same performance as the opportunistic relaying protocol while the complexity of our proposed scheme is much lower than the one of opportunistic system.
AB - The opportunistic relaying in [1] was proposed as an efficient cooperative protocol in the wireless multi-hop systems. However, the opportunistic relaying may still have high complexity as the number of relay nodes increases since the link quality of the paths generated by multiple relay nodes should be monitored. In this paper, we propose a novel multi-hop relay protocol named ?switch and examine node selection? (SENS), where the relay node is selected if its link quality is above a certain threshold which is set to satisfy the required performance and the selected link is maintained unless its link quality does not fall below the threshold. From our derived statistics of the received output signal-to-noise ratio (SNR), we obtain the optimal threshold in terms of the link performance such as the average output SNR, the outage probability, and average error rate. Using the optimal threshold, we show from the analytical and numerical results that the performance of our proposed SENS protocol provides the same performance as the opportunistic relaying protocol while the complexity of our proposed scheme is much lower than the one of opportunistic system.
KW - Cooperative system
KW - Opportunistic relaying
KW - Regenerative transmission
UR - http://www.scopus.com/inward/record.url?scp=36849025967&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36849025967&partnerID=8YFLogxK
U2 - 10.1145/1280940.1281041
DO - 10.1145/1280940.1281041
M3 - Conference contribution
AN - SCOPUS:36849025967
SN - 1595936955
SN - 9781595936950
SP - 469
EP - 474
BT - IWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference
ER -