Details

Autor(en) / Beteiligte

• Shi, Jin Liang
• Zhang, Ya Jun
• Chen, Guo Rong

Titel

A Backoff Algorithm for LOWPAN Based on the Dynamically Backoff Exponent

Ist Teil von

• Applied Mechanics and Materials, 2015-01, Vol.713-715 (Mechatronics Engineering and Modern Information Technologies in Industrial Engineering), p.1389-1393

Ort / Verlag

Zurich: Trans Tech Publications Ltd

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A mechanism that the backoff exponent changes dynamically was proposed aiming at the poor performance of backoff algorithm in IEEE 802.15.4 MAC protocol. The algorithm could adjust the initial backoff exponent according to the previous transmission status and the backoff exponent. A Markov chain model for the algorithm was established and the mathematical derivation for the model was carried out. The theoretical analysis and simulation results show that the model increases the channel access probability and system throughput. The optimized algorithm improves the performance of LOWPAN effectively.