With the development of Internet, P2P applications sometimes represent most of Internet traffic. This phenomenon effects on network performance worse. However, more and more P2P protocols can dynamically hop to differ...
详细信息
This paper proposes a new adaptive rate control algorithm for the reverse link of cdma2000 1x EV-dO rev. A system. In this algorithm, the reverse link channel quality is regarded as an influencing factor of T2P flow a...
详细信息
due to the use of variable length coding(VLC), the MPEG-2 code is very sensitive to channel disturbances. A single bit error in I frame may propagate up to the rest of the slice until the next resynchronization point ...
详细信息
Owing to the dynamical, heterogeneous, complex anddistributed attributes of grid information, it is hard to make a normal and uniform description. How to construct an overlay structure to support the standardized mod...
详细信息
Owing to the dynamical, heterogeneous, complex anddistributed attributes of grid information, it is hard to make a normal and uniform description. How to construct an overlay structure to support the standardized modeling is a key research matter. In this paper, we describe an extensible framework for grid information service virtualized process. We begin the study with grid information and service virtualization. Then the grid information service virtualized process is divided into three levels: category, cluster and service, in which the construction and maintenance methods are studied. The grid information joining, leaving and updating are also analyzed. Finally, the space and time complexities are analyzed, and conclusions and future work are made.
An efficient Call Admission Control (CAC) arithmetic is essential to guarantee QoS for enhancing the utilization of radio resource in multitraffic CdMA systems. This paper presents a Multi-Class Services dynamic Mixed...
详细信息
reconfigurable router with fast look-up table synchronization mechanism is necessary for Next generation network (NGN), which facilitates open and fast deployment of new services. Based on an open architecture, standa...
详细信息
reconfigurable router with fast look-up table synchronization mechanism is necessary for Next generation network (NGN), which facilitates open and fast deployment of new services. Based on an open architecture, standard and highly credible interfaces among modules, a synchronization mechanism of the routing table and FIB (Forwarding information base) is put forward in this paper which is applicable to other look-up tables. This synchronization mechanism overcomes the inconsistency of look-up tables brought by the dynamic loading or unloading of forwarding planes. Anomalies can be rapidly discovered and eliminated by adding the appropriate synchronization messages to multi-queue, calculating the 16-bit Checksum in look-up table andresending parts of look-up table entries to the forwarding planes. A reconfigurable router prototype is built to simulate the scene. The results show that the proposed algorithm can realize high consistency and quick recovery in look-up tables, which improve stability andreliability of the reconfigurable router.
According to the characteristics of fax paper, a method of content-based fax retrieval is put forward. The wavelet decomposition is used in the fax image de-noising, and the wavelet coefficients are used forregional ...
详细信息
Managing and searching facsimiles automatically is the key point to achieve OA (Office Automation). At present, there is a lack of method to establish index of fax, which is the basis of searches. Focus on official bu...
详细信息
The integration of various wireless networks brings some new access security challenges in heterogeneous wireless networks (HWNs). Transaction of the mobile host with an unknown network is more a norm than an exceptio...
详细信息
Lack of preventive measures against junk fax is a great problem in the research on fax server. Safety fax server is proposed in this paper, which detect the received fax before distributing them in order to prevent us...
详细信息
暂无评论