Performance analysis of non-beaconed IEEE 802.15.4 for high-confidence wireless communications

Cyber-Physical Systems (CPS) that collect, exchange, manage information, and coordinate actions are an integral part of the Smart Grid. In addition, Quality of Service (QoS) provisioning in CPS, especially in the wireless sensor/actuator networks, plays an essential role in Smart Grid applications. IEEE 802.15.4, which is one of the most widely used communication protocols in this area, still needs to be improved to meet multiple QoS requirements. This is because IEEE 802.15.4 slotted Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) employs static parameter configuration without supporting differentiated services and network self-adaptivity. To address this issue, this paper proposes a priority-based Service Differentiated and Adaptive CSMA/CA (SDA-CSMA/CA) algorithm to provide differentiated QoS for various Smart Grid applications as well as dynamically initialize backoff exponent according to traffic conditions. Simulation results demonstrate that the proposed SDA-CSMA/CA scheme significantly outperforms the IEEE 802.15.4 slotted CSMA/CA in terms of effective data rate, packet loss rate, and average delay.

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Competition-Based Device-to-Device Transmission Scheduling to Support Wireless Cloud Multimedia Communications

Yao

Wang

Shin

et al. 2014

International Journal of Distributed Sensor Networks

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Multimedia applications based on cloud services for mobile devices have recently gained considerable popularity. However, the increasing density of devices leads to a high level of interference, which reduces the performance of wireless communication between devices and cloud. In this paper, we propose a new approach which allows the network to adaptively find a transmission opportunity scheduling strategy by choosing the most valuable transmission request opportunity. In this approach, the transmission request selection strategy is optimized by considering multimedia distortion reduction, hidden node problem, transmission interference, and signal coverage. Simulation results show that the proposed request selecting strategy significantly improves the systems overall data transmission quality by exploring the tradeoff between communication node pair and their neighbor nodes.

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Performance analysis of non-beaconed IEEE 802.15.4 for high-confidence wireless communications

Cited by 3 publications

References 8 publications

Evaluating IEEE 802.15.4 for CPS

Evaluating IEEE 802.15.4 for CPS

Service Differentiated and Adaptive CSMA/CA over IEEE 802.15.4 for Cyber‐Physical Systems

Competition-Based Device-to-Device Transmission Scheduling to Support Wireless Cloud Multimedia Communications

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