The Modified Mobile Concurrent Multipath Transfer for Joint Resource Management

Abstract

In the recent times, Joint Resource Management (JMR) in heterogeneous environment has emerged as an important technology wherein bandwidth allocation to a user can be provided by different networks simultaneously. This is supported by Concurrent Multipath Transfer (CMT) algorithm to transfer data among two end-to-end paths of an mSCTP association in wireless mobile connectivity. SCTP based CMT technology can transmit data over multiple paths, thus achieving higher data transmission speed. The CMT, however, suffers with receiver buffer blocking problem in wireless mobile networks. A mobile CMT (mCMT) was introduced to further reduce the effect of buffer blocking but still there is a probability of receiver buffer blocking [1]. Receiver buffer blocking is caused by the loss of data due to various reasons. In this paper, we propose a novel theoretical concept called modified mobile CMT (m2CMT) to improve upon the performance of mCMT. It completely avoids receiver buffer blocking. In the proposed new technology of m2CMT, three new concepts of Stream Manager, Handoff Manager and Link Status Indicator (LSI) are introduced. Stream Manager can increase the throughput and avoid receiver buffer blocking caused by error loss. Handoff Manager can reduce the data loss by using LSI during handoff process to avoid receiver buffer blocking.