CA-MAC: A Novel MAC Protocol to Alleviate Congestion in Wireless Sensor Networks
Autor: | WU, J., LIU, H., DOBRE, O. A., FANG, C., QIAN, L. |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Advances in Electrical and Computer Engineering, Vol 13, Iss 4, Pp 41-46 (2013) |
Druh dokumentu: | article |
ISSN: | 1582-7445 1844-7600 |
DOI: | 10.4316/AECE.2013.04007 |
Popis: | Even if the traffic pattern is known and the network topology is simple, a strong congestion can take place in wireless sensor networks (WSNs) due to the data gathering effect and the duty-cycle operation. In this paper, we propose a novel medium access control (MAC) protocol to alleviate the congestion, which is referred to as the congestion alleviation-MAC (CA-MAC). It adopts an adaptive contention window (ACW), which allows the nodes with more buffered packets to transmit with a higher probability, as well as an intelligent burst packet transmission when the congested nodes seize the channel. Simulations are performed in NS-2, and results show that the proposed CA-MAC protocol achieves a good performance in terms of the packet delivery ratio (PDR), power consumption, throughput, and average latency. |
Databáze: | Directory of Open Access Journals |
Externí odkaz: |