{'fraction_non_alphanumeric': 0.020486555697823303, 'fraction_numerical': 0.0, 'mean_word_length': 5.062015503875969, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Adaptive beacon rate control algorithm for vehicular ad-hoc networks

A key feature of the vehicular ad-hoc networks (VANETs) is to broadcast the beacon message containing the position, speed, heading, etc. However, the fixed-rate scheme in the current standards may incur too large traffic load to the DSRC channel leading to a significant degradation of the network performance. In this paper, we present a new beacon rate control algorithm that succeeds in tracking the movement of nearby vehicles until K consecutive losses of the beacon message. From the numerical results of the simulation, we show that the proposed scheme can achieve much better performance than the fixed-rate scheme in term of the DSRC channel utilization and the successful vehicle tracking probability.