Based On The Lte P2p System Research And Design

As the continuous development of wireless mobile communication, the mobileequipment such as mobile phone and Pad plays a more and more important role in ourdaily life. Mobile P2P technique becomes a new focal point as the video playing andhigh speed downloading is required in the wireless mobile environment. LTE representsthe future of mobile communication. And with the commercial development of LTE,how to combine mobile P2P with LTE becomes a new research direction. Theincreasing quantity of mobile equipments and transmission data brings the challenge tothe LTE based mobile P2P system.In this paper, we mainly discussed three points of mobile P2P system under theenvironment of LTE.First is the system architecture design. Combine with the all-IP characteristic ofLTE and P2P technique, we design a new structure of mobile P2P system. This systemaimed at fully using of the peer resource covered by the same eNodeB and trying todecrease the data transmission pressure. In this system we also used file cache server toovercome the shortage of wireless mobile equipment, at the same time providing highquality servers to the request customer peers.Second is the P2P peer selection algorithm. The current peer selection algorithmonly consider the peer capability or the cell load while ignoring the cross domain dataflow, which may cause big pressure to the core network EPC. As we discussed above,the pressure of EPC may become the bottleneck of the whole network. So we designeda new peer selection algorithm, using data flow localization to reduce the cross domaindata flow, and decrease the pressure of EPC.At last we discussed the content cache server cooperation strategy. Combining thecentralized cooperation strategy with the distributed strategy, we design a new cachestrategy to reduce the cross domain data flow and balance the data load betweendifferent cache servers.