Joint Routing and Re-routing Control in Two-hop Cellular Relaying System

Abstract

Relay is emerged recently as a promising solution not the MT wishes to transmit information to BS and obtain a only to improve coverage but also end-to-end date rate. How to source route to the destination. Yet, even with a well designed manage the radio resources effectively for the integrated cellular and tuned routing algorithm, it is still not clear whether the network are the key issues to be studied. The paper re-evaluates ..' the traditional concept of adjustment and optimization for the tsystem capacity wll cost-effectively increase, manly due to call routing and congestion control as call routing and admission that the radio resource management algorithms may also limit control (CRAC). With respect to the mobility and the variable the system performance [4][5] [6]. For instance, traffic is likely wireless environment, the call re-routing algorithm which to be unbalanced in real system, the throughput of the entire implements the intelligence and adaptability is also studied as system may be decreased, and call blocking and dropping may call re-routing control (CRRC). The joint routing and re-routing occur due to localized congestion. By considering load balance control (JoRR) algorithm is proposed to realizes the global optimization of the existing algorithms Two schemes, namely an routing a user may be routed to a low loaded cell therefore Centralized Architecture (CA) and Decentralized Architecture alleviating the congestion and improving the performance. In (DA), are studied to implement the JoRR algorithm whose summary, combined design and optimization of routing criterion is selected by considering the characteristics of the algorithms and other radio resource management functions [7] integrated cellular system and the tradeoff between the cost and are crucial to fully exploit the potential benefits of the relaying. the effectivity. At last, a set of system-level performance

Cell-Cluster Based Traffic Load Balancing in Cooperative Cellular Networks

“…To solve the problem of cell congestion, the overloaded traffic should be transferred from the congested cells to non-congested ones. Some researches have been made on this problem, in [1], an iCAR system is proposed to dynamically balance the traffic loads using ad-hoc relaying stations and in [2], a joint routing and re-routing control algorithm is proposed to realize global optimization.…”