English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In this paper, we consider safety message transmission in a dense vehicularnetwork. With increasing vehicular network density, the collision rateincreases when multiple vehicles transmit safety messages simultaneously. Toaddress this issue, we propose a request-transmission split time divisionmultiple access (TDMA) scheme, referred to as RTS-TDMA. In our scheme, wedivide a frame into three phases, i.e., a contention access phase, a broadcastfeedback phase, and a contention-free transmission phase. Each vehicle selectsa repetition rate according to a given probability distribution and repeats thetransmission of its request packet to improve the reliability of the request.In addition, a roadside unit acts as the coordinator and uses a successiveinterference cancellation technique to resolve request collisions. RTS-TDMAalso reduces the request time percentage by containing only the vehicleidentity in each request packet. Both theoretical analysis and numericalresults verify that the RTS-TDMA scheme can provide higher throughput than thecoded slotted ALOHA scheme.

A TDMA-like Access Scheme with Splitting Request and Transmission for Vehicular Networks