Dynamic Duty-Cycle MAC Protocol for IoT Environments and Wireless Sensor Networks

Energies

Gayoung Kim¹  Jin-Gu Kang¹  Minjoong Rim² 

[1] Department of Computer Science and Engineering, Dongguk University, Seoul 04620, Korea;Department of Information and Communication Engineering, Dongguk University, Seoul 04620, Korea;

关键词: green energy;    asynchronous duty-cycle mac protocol;    low energy consumption;    low transmission delay;    internet of things;   

DOI  :  10.3390/en12214069

来源: DOAJ

【 摘 要 】

This paper proposes a new protocol that can be used to reduce transmission delay and energy consumption effectively. This will be done by adjusting the duty-cycle (DC) ratio of the receiver node and the contention window size of the sender node according to the traffic congestion for various devices in the Internet of Things (IoT). In the conventional duty-cycle MAC protocol, the data transmission delay latency and unnecessary energy consumption are caused by a high collision rate. This is because the receiver node cannot sufficiently process the data of the transmitting node during the traffic peak time when the transmission and reception have the same duty-cycle ratio. To solve this problem, this paper proposes an algorithm that changes the duty-cycle ratio of the receiver and broadcasts the contention window size of the senders through Early Acknowledgment (E-ACK) at peak time and off/peak time. The proposed algorithm, according to peak and off/peak time, can transmit data with fewer delays and minimizes energy consumption.

【 授权许可】

Unknown