In this paper, we analyze the performance of the multichannel version of Enhanced Distributed Channel Access (EDCA) and compare its results with the single channel implementation. The novelty with this analysis is that we consider all four Access Category (AC) queues per channel across all channels are enabled. EDCA is an option for ensuring quality-of-service (QoS) of vehicular network communications. EDCA applies four ACs with different priorities to various services within one vehicular node. Additionally, multichannel operation can be deployed in order to provide a variety of safety or non-safety services. In multichannel mode, the time is divided into either a Control Channel Interval (CCHI) or a Service Channel Interval (SCHI) consisting of equal time durations. The safety-related messages and the control messages are sent during CCHI. The non-safety messages are transmitted during the SCHI. The simulation experiments are performed via a custom-built vehicular network simulation environment created using MATLAB Discrete Event System (DES). The results verify that multichannel is effective and necessary to guarantee a relative low data latency.
Performance Analysis of Multichannel EDCA-Based V2V Communications via Discrete Event System
2019-09-01
793284 byte
Conference paper
Electronic Resource
English
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