Research Of Distributed Resource Management Model For Controller

There are two hardware named resource manager and resource applicant in wirelesscontroller, resources like signaling and codon are managed by resource manager, thesingle resource manager deals with the resource request from resource applicant. With theincrease of network traffic and the number of users, because of the manager’s limitedprocessing capacity, resource applicant can not get resource from manager even thoughthe resource is free. This paper aims at the bottleneck, designs and implements the cachemodel of resource applicant and the ring model of resource manager.Cache model builds the cache mechanism in resource applicant, decreases thenumber of request to resource manager since most request is satisfied in cache. Cachemodel adopts TIME algorithm to manage cache resource, and time factor is configured tocache resource, TIME algorithm runs periodicity, it subtracts1from the resource’s timefactor, if time factor turn to0, then the cache resource is released to resource manager, theperformance of TIME algorithm is related to time factor, run cycle of algorithm and cachesize.The resource manager’s node space is limited and stable in ring model, each nodestore the connect information of all nodes, but only communicate with the previous nodeand the next node, each node uses the global connect information to rebuild therelationship of previous and next. After initialization, the architecture of ring model isstable, node uses its serial number to find join point when joining, the resource of quitnode is taken over by the next node after quit node is discovered. The performance of ringmodel is related to the number of resource manager.The test results show, both cache model and ring model can deal the problem ofresource manager. The performance of cache model is higher than that of ring model,while ring model has high reliability and usability, since it solved the single point offailure of resource manager.