Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks
This paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA). Improving CSMA/CA is important because the low-power consumption feature and throughput performance...
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doaj-14308cd6d392491ba76da8fa2078f9b72020-11-24T22:21:51ZengMDPI AGSensors1424-82202016-06-0116681510.3390/s16060815s16060815Segmentized Clear Channel Assessment for IEEE 802.15.4 NetworksKyou Jung Son0Sung Hyeuck Hong1Seong-Pil Moon2Tae Gyu Chang3Hanjin Cho4School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, KoreaSeoul SW-SoC R&BD Center, ETRI, Gyeong-gi 13480, KoreaThis paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA). Improving CSMA/CA is important because the low-power consumption feature and throughput performance of IEEE 802.15.4 are greatly affected by CSMA/CA behavior. To improve the performance of CSMA/CA, this paper focused on increasing the chance to transmit a packet by assessing precise channel status. The previous method used in CCA, which is employed by CSMA/CA, assesses the channel by measuring the energy level of the channel. However, this method shows limited channel assessing behavior, which comes from simple threshold dependent channel busy evaluation. The proposed method solves this limited channel decision problem by dividing CCA into two groups. Two groups of CCA compare their energy levels to get precise channel status. To evaluate the performance of the segmentized CCA method, a Markov chain model has been developed. The validation of analytic results is confirmed by comparing them with simulation results. Additionally, simulation results show the proposed method is improving a maximum 8.76% of throughput and decreasing a maximum 3.9% of the average number of CCAs per packet transmission than the IEEE 802.15.4 CCA method.http://www.mdpi.com/1424-8220/16/6/815clear channel assessmentcarrier sense multiple access with collision avoidance (CSMA/CA)IEEE 802.15.4 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kyou Jung Son Sung Hyeuck Hong Seong-Pil Moon Tae Gyu Chang Hanjin Cho |
spellingShingle |
Kyou Jung Son Sung Hyeuck Hong Seong-Pil Moon Tae Gyu Chang Hanjin Cho Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks Sensors clear channel assessment carrier sense multiple access with collision avoidance (CSMA/CA) IEEE 802.15.4 |
author_facet |
Kyou Jung Son Sung Hyeuck Hong Seong-Pil Moon Tae Gyu Chang Hanjin Cho |
author_sort |
Kyou Jung Son |
title |
Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks |
title_short |
Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks |
title_full |
Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks |
title_fullStr |
Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks |
title_full_unstemmed |
Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks |
title_sort |
segmentized clear channel assessment for ieee 802.15.4 networks |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2016-06-01 |
description |
This paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA). Improving CSMA/CA is important because the low-power consumption feature and throughput performance of IEEE 802.15.4 are greatly affected by CSMA/CA behavior. To improve the performance of CSMA/CA, this paper focused on increasing the chance to transmit a packet by assessing precise channel status. The previous method used in CCA, which is employed by CSMA/CA, assesses the channel by measuring the energy level of the channel. However, this method shows limited channel assessing behavior, which comes from simple threshold dependent channel busy evaluation. The proposed method solves this limited channel decision problem by dividing CCA into two groups. Two groups of CCA compare their energy levels to get precise channel status. To evaluate the performance of the segmentized CCA method, a Markov chain model has been developed. The validation of analytic results is confirmed by comparing them with simulation results. Additionally, simulation results show the proposed method is improving a maximum 8.76% of throughput and decreasing a maximum 3.9% of the average number of CCAs per packet transmission than the IEEE 802.15.4 CCA method. |
topic |
clear channel assessment carrier sense multiple access with collision avoidance (CSMA/CA) IEEE 802.15.4 |
url |
http://www.mdpi.com/1424-8220/16/6/815 |
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