The rapid development of internet makes higher and higher demands on the performance of the exchange equipment. However, as the core of the exchange equipment, the performance of switch fabric affects directly the performance of the exchange equipment. In this paper, at first, we introduce the exchange system and analyse its existing problems. Then the
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With the development of the wireless communication technology and rapid growth of the mobile users, diversification and generalization in mobile services have become the most obvious trend in the present mobile commucation field.Meanwhile, the users’requests of high data rate and serve-quality provided by communication operators are becoming more urgent than before. However, the available radio
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With the development of networks, the reliability of data transfer and the transfer bandwidth are much higher, and the problem of the bulk data transfers is an important research area of network technologies. In this paper, for bulk data transfers problem based on end-systems’constraint in ultra-high-speed networks, we give a transport protocol and tools named
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In the LTE system, scheduling is accomplished by scheduler located at eNodeB, which includes downlink scheduler and uplink scheduler. They are responsible for managing the downlink and uplink resource packet scheduling respectively. Compared to the WCDMA systems, in which packet scheduling is controlled by the RNC, packet scheduling in the LTE system can choose proper
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IP Multimedia Subsystem that is IMS (IP Multimedia Subsystem), is put forward by the third generation of mobile communication partner organizations3GPP (The third Generation Partnership Project),as the general network architecture in IP-based networks to provide multimedia services. It is characterized by realizing the communication has nothing to do with the access methods, complied with the
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IP Multimedia Subsystem that is IMS (IP Multimedia Subsystem), is put forward by the third generation of mobile communication partner organizations3GPP (The third Generation Partnership Project),as the general network architecture in IP-based networks to provide multimedia services. It is characterized by realizing the communication has nothing to do with the access methods, complied with the
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Business Support System is the integration of telecom operators and the sharing of information resources support system. With the expansion of the information needs, the major operators adapting to changes in market competition, enhance the quality of service of telecom operators for centralized transformation to its business support system. Cloud computing as a next-generation distributed
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With the development of wireless communication technology, broadband wireless access has drawn considerable attention. WiMAX has been widely concerned due to its greater coverage, higher transmission rate and more reliable transmission performance. WiMAX Mesh network, with its multi-hop and self-organization capability, is becoming the mainstream of the WMN network. However, many difficulties still exist in
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With the development of Internet, web-based data visit grows rapidly. And the visits to data center, large enterprises, and web portals are up to the level of10Gb/s especially. Meanwhile, using HTTP、FTP、SMTP and other application program, the server websites provide abundant contents and information, and the server itself is submerged by large amount of data. Besides,
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The Internet streaming media service becomes more and more popular andattractive because of the development of the Internet. It can be divided into two types:Internet television and Video-on-Demand. The Internet television desires the real-timeplayback of media, and requires higher data transmission efficiency than theVideo-on-Demand. The P2P technology acts as the basic technical support for livestreaming
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