Research On Micro-Power Communication Routing Algorithm Based On Intelligent Home Network

Intelligent home network which consists of power line communication network and wireless telecommunication network has shown new characteristics, such as heterogeneity, dynamics and openness. And home network is unreliable because of the sudden noise on power line and complexity of home environment. In order to provide users with reliable service to fulfill the Qo S(Quality of Service) requirement, reliable communication between nodes in home network must be guaranteed.The key research content of this thesis is to propose high-performance routing algorithms based on the home heterogeneous network. First of all, this paper studies the characteristics of both wire and wireless channels in home environment. And show the dynamic reliability-forecasting scheme based on the hidden markov model for terminal nodes. Furthermore, we study the general micro-power heterogeneous network architecture and present a routing algorithm which is more reliable and combines both opportunistic routing and shortest path algorithm. In return, less retransmissions and latency will be cost. And to avoid duplicated transmission resulting from opportunistic routing, we introduce CSMA/CA protocol. Finally, we study relay cooperative communication strategy in home micro-power wireless network. Because of the limits of power in the micro-power system, high energy efficiency is required. And this paper proposes an effective centralized scheme in which power allocation policy is raised. To reduce the complexity, we resolve the problem into two parts:relay selection algorithm and power allocation policy. In this thesis central node can dynamic choose routing mechanism based on channel state information to improve the performance of home network, and save energy.