Title :
On the Performance Analysis of Energy-Efficient Upstream Scheduling for Hybrid Fiber-Coaxial Networks with Channel Bonding
Author :
Ping Lu ; Yabo Yuan ; Zhongzhen Yang ; Zuqing Zhu
Author_Institution :
Sch. of Inf. Sci. & Technol., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
We develop a novel QoS-aware energy-efficient upstream traffic scheduling algorithm for channel-bonding cable modems (CMs) in hybrid fiber-coaxial (HFC) networks. Based on their QoS requirements, the algorithm sends incoming packets to different priority queues and controls channel-bonding transmitters (TXs) to forward them. Based on a vacation M/M/n queuing model, we analyze the algorithm´s performance with a three-dimensional Markov chain and derive the analytical expressions of packet delay and power consumption.
Keywords :
Markov processes; coaxial cables; modems; optical cables; optical fibre networks; quality of service; queueing theory; scheduling; QoS requirements; QoS-aware energy-efficient upstream traffic scheduling algorithm; channel-bonding cable modems; channel-bonding transmitters; hybrid fiber-coaxial networks; packet delay; performance analysis; power consumption; priority queues; three-dimensional Markov chain; vacation M/M/n queuing model; Analytical models; Delays; Hybrid fiber coaxial cables; Markov processes; Power demand; Quality of service; Scheduling algorithms; DOCSIS 3.0; Hybrid fiber-coaxial (HFC) networks; energy-efficient scheduling; vacation queuing model;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.040213.130165
