HRC-MAC:A Hard Real Time Wireless Sensor MAC Layer Optimization Algorithm Based on CDMA
WANG Zhongzheng
WANG Jinxing
Abstract：In the wireless sensor networks of hard real time,now communication protocol based on competition,such as Time Division Multiple Address(TDMA),has a low real time. There is only one sensor occupying one channel at the same time,while the other needing to transmit data wait in line,which cannot meet the demand of explosive monitoring and other applications. Aim?ing at the appearance,this paper proposes an optimization algorithm of HRC-MAC(hard real-time mac)based on Code Division Multiple Access(CDMA). By using the feature of code division multiplexing on CDMA,many sensors that need transmitting data work at the same time can be ensured,which can improve the real time effective. Experimental data shows that the protocol algo?rithm optimizes much in the aspect of the net transmission delay,and makes the time multiplexing come true,which achieves the hard real-time synchronous communication.
Keywords：WSNCDMAhard real-timeMAC protocol
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1105-1110 )