TY - GEN
T1 - Experimental analysis of interference in dual-radio wireless sensor networks
AU - Kim, Jongwon
AU - Jeong, Yeonsik
AU - Han, Seung Jae
PY - 2010
Y1 - 2010
N2 - For large-scale Wireless Sensor Networks(WSNs), cluster-based architecture is desirable. Conventional short range sensor radio, however, is often inefficient for the inter-cluster communication due to the large distance between cluster heads. One solution is to use a longer range radio for inter-cluster head communication. In this paper, we consider a dual-radio cluster head with IEEE 802.15.4 and IEEE 802.11b. A key issue is that 802.15.4 and 802.11b use the same frequency band at 2.4 GHz, so that they can potentially interfere with each other. We analyze this interference behavior via testbed experiments. Our results indicate that with a simple relaying mechanism, interference was quite high even when orthogonal channels are used for two radios. This strongly suggests the need of smarter relaying mechanisms.
AB - For large-scale Wireless Sensor Networks(WSNs), cluster-based architecture is desirable. Conventional short range sensor radio, however, is often inefficient for the inter-cluster communication due to the large distance between cluster heads. One solution is to use a longer range radio for inter-cluster head communication. In this paper, we consider a dual-radio cluster head with IEEE 802.15.4 and IEEE 802.11b. A key issue is that 802.15.4 and 802.11b use the same frequency band at 2.4 GHz, so that they can potentially interfere with each other. We analyze this interference behavior via testbed experiments. Our results indicate that with a simple relaying mechanism, interference was quite high even when orthogonal channels are used for two radios. This strongly suggests the need of smarter relaying mechanisms.
UR - http://www.scopus.com/inward/record.url?scp=77951289725&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951289725&partnerID=8YFLogxK
U2 - 10.1109/CCNC.2010.5421757
DO - 10.1109/CCNC.2010.5421757
M3 - Conference contribution
AN - SCOPUS:77951289725
SN - 9781424451760
T3 - 2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010
BT - 2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010
T2 - 2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010
Y2 - 9 January 2010 through 12 January 2010
ER -