Concurrent transmission mechanism to mitigate pan-exposed-node problems in wireless sensor networks | Zendy

Xuejian Zhao | Zendy; Siguang Chen | Zendy; Jing Guo | Zendy; Han Hu | Zendy; Zhixin Sun | Zendy

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Concurrent transmission mechanism to mitigate pan-exposed-node problems in wireless sensor networks

Author(s) -

Xuejian Zhao,

Siguang Chen,

Jing Guo,

Han Hu,

Zhixin Sun

Publication year - 2017

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1177/1550147717698470

Subject(s) - computer science , node (physics) , schedule , transmission (telecommunications) , computer network , wireless sensor network , hidden node problem , mechanism (biology) , interference (communication) , power control , sensor node , wireless network , wireless , power (physics) , distributed computing , real time computing , key distribution in wireless sensor networks , telecommunications , channel (broadcasting) , wi fi array , philosophy , physics , structural engineering , epistemology , quantum mechanics , engineering , operating system

Power control technology is widely used in wireless sensor networks to improve network performance. The asymmetric transmission power strategy used in power control technology causes the re-emergence of hidden-node problems and more serious exposed-node problems. This article analyzes the reasons of these problems and proposes the concept of the pan-hidden node and pan-exposed node. To avoid pan-hidden-node problems and mitigate pan-exposed-node problems, a concurrent transmission mechanism is presented. The concurrent transmission mechanism contains a strict time schedule for different categories of frames and an interference degree criterion to ensure concurrent transmission. The rigorous time schedule can guarantee that different classes of frames do not interfere with one another. The interference among the frames of the same type is constrained by the interference degree criterion. Finally, the performance of the concurrent transmission mechanism is evaluated using simulation experiments.

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