摘要
针对IEEE 802.15.4高速数据传输的应用场景,提出一种具有高吞吐量和低延时特性的定制化MAC协议。基于HRP UWB PHY对数据传输模型和吞吐量深入分析,并结合MAC协议的冲突避免载波侦听多路访问(Carrier Sense Multiple Access with Collision Avoid,CSMA-CA)和保障时隙(Guaranteed Timeslot,GTS)实时传输的特性,设计了该机制有效的管理流程。最后在Vivado中使用Verilog HDL对MAC控制器进行硬件设计和验证。仿真结果表明,与经典IEEE 802.15.4 MAC协议相比,该MAC控制器的吞吐量提高了26%,同时数据传输时延降低了17%。
For high-speed data transmission in IEEE 802.15.4,a customized MAC protocol with high-throughput and low-latency characteristic is proposed.It is concluded with in-depth analysis of the data transmission model and throughput of HRP UWB PHY,combined with the characteristics of MAC protocol’s Carrier Sense Multiple Access with Collision Avoidance(CSMA-CA)and Guaranteed Timeslot(GTS)for real-time transmission,then the effective management process of the mechanism is designed.Finally,hardware design and verification of the MAC controller is conducted using Verilog HDL in Vivado.Simulation results demonstrate that compared to the classic IEEE 802.15.4 MAC protocol,the proposed MAC controller improves its throughput by 26%and reduces data transmission latency by 17%.
作者
刘灏
林敏
郑立寅
于泽
Liu Hao;Lin Min;Zheng Liyin;Yu Ze(School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China)
出处
《电子技术应用》
2024年第10期44-50,共7页
Application of Electronic Technique
