Abstract
Internet of Things (IoT) is the ultimate enabler of modern civilization. Cooperative communication in multichannel directional wireless networks is one of the cutting-edge IoT research themes. Typically, cooperation in wireless networks is the opportunistic relaying of data packets for neighboring nodes by idle nodes. Current IoT-based researches related to multichannel with directional antenna introduce the control channel cooperation. But, the iterative phenomenon of negotiation in control channel results in higher communication delay. Hence, to reduce the data transmission delay, cooperation in data relaying need to be used along with control channel cooperation. In this paper, we propose a Cooperation-based Adaptive and Reliable MAC (CAR MAC) Design for Multichannel Directional Wireless IoT Networks that combines both of these cooperation and multichannel directional concepts of cooperation. Multichannel directional hidden terminal problems and deafness problems in medium access are solved using both concepts of cooperation jointly. Besides, multidirectional data packet relaying in the same data channel enables parallel transmission that increases the bandwidth utilization. Moreover, the proposed protocol uses a smart GPS (Global Positioning System) based neighbor discovery. Therefore, the directional position and distance among the IoT-enabled wireless nodes are smartly determined to make the control channel cooperation more informative. The results of extensive simulations reveal that CAR MAC achieves significant improvement in network performances.
Highlights
N OWADAYS, the use of Internet of Things (IoT) [1] devices dominates our daily life
The protocol has solved the major drawbacks of such network environment, i.e., the multichannel hidden terminal problems and deafness problems employing a recent concept of cooperation named control channel cooperation which is a distributed information sharing (DISH) process
MOTIVATION A lot of research works have been done to address the above-mentioned challenges and problems in designing multichannel directional Medium Access Control (MAC) protocols for wireless networks [10], [13], [25], [26]. Most of those protocols only resolve multichannel directional hidden terminal and deafness problems but the guaranteed data delivery issue is rarely addressed at those works
Summary
N OWADAYS, the use of Internet of Things (IoT) [1] devices dominates our daily life. Wireless IoT devices with latest IoT technologies [1] makes human lifestyle more easier and effective. To the best of our knowledge, no research work has been conducted to solve the multichannel directional hidden terminal problems and deafness problems combining cooperative control frame and data frame concepts in wireless IoT networks Such protocol design considerations in data transmission ensures following benefits:. The protocol has solved the major drawbacks of such network environment, i.e., the multichannel hidden terminal problems and deafness problems employing a recent concept of cooperation named control channel cooperation which is a distributed information sharing (DISH) process. Cooperation in wireless IoT networks represents the relaying of data packets by the nodes intermediary between source and destination This concept of cooperation conflicts with the conventional idea of cooperation and prolong the communication time for recurrent control channel negotiation resulting in higher communication delay and minimizing overall network throughput
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