Exploring the feasibility of differentiating IEEE 802.15.4 networks to support health-care systems

Shin, Youn-Soon; Lee, Kang-Woo; Ann, Jong-Suk

doi:10.1109/jcn.2011.6157412

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…NB parameter has the smallest effects on the throughput and delay to support priority. The difference between our results and results in [10] is that their proposed initial BE parameter does not produce improved result for higher priority levels. They got this result because they use too small the initial BE parameter.…”

Section: ⅴ Numerical Resultscontrasting

confidence: 96%

“…In our mechanism, we use the larger initial BE parameter to differentiate priority levels and this larger initial BE parameter shows more effective for differentiating priority levels. In paper [10], they use BE and NB parameters to support priority. CW is also one important parameter in CSMA-CA algorithm and it gives more effect than NB parameter for differentiating priority levels, that why we use three parameters to support priority in our mechanism.…”

Section: ⅴ Numerical Resultsmentioning

confidence: 99%

“…In [5] and [7] , the priority is supported by using backoff exponent and contention window in WLAN and WPAN networks. The priority is also supported by using backoff exponent and number of backoff times in [10] for WPAN networks. We propose a mechanism to provide priority by using three parameters: backoff…”

Section: ⅰ Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Priority MAC based on Multi-parameters for IEEE 802.15.7 VLC in Non-saturation Environments

Huynh¹,

Jang

2012

The Journal of Korean Institute of Communications and Informati

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Priority MAC is an important issue in every communication system when we consider differentiated service applications. In this paper, we propose a mechanism to support priority MAC based on multi-parameters for IEEE 802.15.7 visible light communication (VLC). By using three parameters such as number of backoff times (NB), backoff exponent (BE) and contention window (CW), we provide priority for multi-level differentiated service applications. We consider beacon-enabled VLC personal area network (VPAN) mode with slotted version for random access algorithm in this paper. Based on a discrete-time Markov chain, we analyze the performance of proposed mechanism under non-saturation environments. By building a Markov chain model for multi-parameters, this paper presents the throughput and transmission delay time for VLC system. Numerical results show that we can apply three parameters to control the priority for VLC MAC protocol. sensor networks [7][8][9] .Data packets with various levels of importance are considered in VLC system. Supporting priority in VLC system is necessary for different types of data packets. In [5] and [7] , the priority is supported by using backoff exponent and contention window in WLAN and WPAN networks. The priority is also supported by using backoff exponent and number of backoff times in [10] for WPAN networks. We propose a mechanism to provide priority by using three parameters: backoff Packet arrived NB =0 , CW0= 0, B E=B E[ l], NB m ax= NB[l] , CW=CW[l]Channel idle?

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Section: ⅴ Numerical Resultscontrasting

confidence: 96%

Section: ⅴ Numerical Resultsmentioning

confidence: 99%