High-throughput low-delay MAC protocol for Tera Hertz ultra-high data-rate wireless networks  

作　　者：Cao Jianling Wang Min Chen Cong Ren Zhi 

机构地区：[1]Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications

出　　处：《The Journal of China Universities of Posts and Telecommunications》2016年第4期17-24,共8页中国邮电高校学报（英文版）

基　　金：supported by the Project of Chongqing Municipal Education Commission(Kjzh11206);the Special Fund of Chongqing Key laboratory(CSTC);the National Natural Science Foundation of China(60972068);the Program for Changjiang Scholars and Innovative Research Team in University(IRT1299);and the Research Project of Fundamental and Frontier Science of Chongqing(cstc2015jcyjB X0085)

摘　　要：To address the problems of the present Tera Hertz medium access control（MAC） protocols such as not updating the time slot requests numbers in time, unreasonable superframe structures and not merging time slot requests from the same pair of nodes, high throughput low delay medium access control（HLMAC）, a novel MAC protocol for Tera Hertz ultra-high data-rate wireless networks is proposed. It reduces the data access delay largely with a new superframe structure, from which nodes can get time slot allocation information immediately. The network throughput is also improved with the help of updating time slot requests number and merging time slot requests from the same pair of nodes. The theoretical analysis verifies the effectiveness of HLMAC, and the simulation results show that HLMAC improves the network throughput by 65.7% and decreases the access delay by 30%, as compared to energy and spectrum-aware medium access control（ES-MAC）.To address the problems of the present Tera Hertz medium access control（MAC） protocols such as not updating the time slot requests numbers in time, unreasonable superframe structures and not merging time slot requests from the same pair of nodes, high throughput low delay medium access control（HLMAC）, a novel MAC protocol for Tera Hertz ultra-high data-rate wireless networks is proposed. It reduces the data access delay largely with a new superframe structure, from which nodes can get time slot allocation information immediately. The network throughput is also improved with the help of updating time slot requests number and merging time slot requests from the same pair of nodes. The theoretical analysis verifies the effectiveness of HLMAC, and the simulation results show that HLMAC improves the network throughput by 65.7% and decreases the access delay by 30%, as compared to energy and spectrum-aware medium access control（ES-MAC）.

关 键 词：Tera Hertz wireless networks MAC protocols superframes low delay 

分 类 号：TN92[电子电信—通信与信息系统] TN915.04[电子电信—信息与通信工程]