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In the CDMA cellular mobile communication system, the order of neighbor cell list (NCL) determines whether the mobile station can make a success handoff to the best neighbor in time. Therefore, the success rate of handoff depends on the suitability of the NCL's management, which directly affects network performance. Traditional NCL algorithm used the method(More)
With the development of P2P, there are some new applications such as P2PSIP and intercommunication of heterogeneous DHTs (Distributed Hash Table). In the scenario of P2PSIP, there needs some nodes acting as all kinds of proxies of SIP; and as to intercommunication of heterogeneous DHT, there need some nodes to be the gateway roles to complete the(More)
P2P systems can be used to form a low latency decentralized data delivery system. Structured P2P systems provide both low latency and excellent load balance with uniform query and data distributions, however, in the real application environment, requests distributions are often skewed and follow a Zipf law, some objects will become hotspots, individual(More)
TD-LTE technology put up some new challenge to network optimization and configuration. In this paper, we grouped the parameters and KPIs(Key Performance Index) into 9 kind of dimensions according to scenarios in TD-LTE, they are basic information of RAN, basic physical/logical resources allocated to network elements, time interval/event scenarios,(More)
During the process of mobile network planning and optimization, capacity predication is one of the important contents. Accurate capacity results will not only improve the running quality of the network, but also will improve the satisfaction of the users. Traditionally, Erlang B formula was used to forecast the capacity of network. The forecasted results(More)
The main contribution of this work is to give a new and explicit calculation of the fade margin and cell coverage improvement with hard- and soft handoff for the reverse link in CDMA systems. Since call outage analysis for the handoff technique is important for evaluating the performance of CDMA systems, we relate the outage probability with practical(More)
Most P2P applications require to elect some supernodes(SN) from the peers to improve the performance, so the supernode election has become an important issue in such systems. To our best knowledge, most applications assume that nodes with enough bandwidth and powerful computation, having a public IP address can become SNs, but this strategy may have some(More)
Traditional performance analysis aiming at OMC performance data mainly focuses on two aspects: longitudinal comparison of the same network element in different time periods and horizontal comparison of the different network elements in the same time. It's lack of association analysis between performance indexes and in-depth data mining. In this paper, a(More)