ATM交换的优先控制方式

本文对采用ATM体制的宽带综合业务数字网业务流的优先控制进行了研究，提出了两种新的优先控制方法。     

科技振兴RFID产业:加强自主技术创新

本文列举了中国的RFID技术在物流、邮政、交通、证件等应用方面取得的众多科枝成果,叙说了中国政府对RFID的强大助推政策,指出在加强自主如识创新的同时加强专利技术申请以及保护专利成果的重要性。     

深圳信息通信网的现状及发展

本文介绍了深圳公众电话网、数字数据网、移动通信网及有线电视网等信息通信网的现状，并对方向宽带化、智能化和个人化的综合业务数字网方向发展。     

加快海南电信事业发展促进海南国民经济信息化

海南自１９８８年来建省以来，经过８年努力，一改过去通信落后的面貌，网络规模，技术层次，服务水平都跃入全国先进行列。“九五”电信发展序幕已经拉开，今后的发展重点和工作方针已经确立，实施方案具体而详尽；提高电信网综合能力和技术层次，提高服务质量和服务水平，发展业务，开拓市场，采取措施加强维护管理方方面面齐头并进。     

Modeling and Analysis of Broadband Cellular Networks with Multimedia Connections

As mobile networking is moving towards the direction of providing high-speed multimedia services, the presence of connections that do not generate traffic at constant rate is becoming reality in wireless environment. For preliminary network design purposes analytical models are necessary that examine the performance or wireless networks with such connections. In this paper an analytical method is presented to calculate call-level system parameters of cellular networks with multimedia connections. The method is based on an approximate recursive calculation. The accuracy of the approximation is verified by computer simulations. The derivation of the distributions of user describing time variables and two simple admission control policies are also presented and investigated.     

Should mobile Internet be an extension to the fixed web? Fixed-mobile reinforcement as mediator between context of use and future use

As the fixed and mobile Internet are converging, the question emerges whether consumers expect mobile Internet services to replicate services they know from the fixed Internet. Literature on reinforcement and displacement suggests that the use of new media depends on whether users are inclined to replace or reinforce their existing media use on a new device. This paper analyzes whether the importance that users attribute to using similar services on their mobile phone as on the fixed Internet can explain the intention to adopt mobile services. Specifically, we investigate if such fixed-mobile reinforcement could mediate the impact of personal innovativeness and several dimensions of context. We compare basic Internet services, entertainment services and transaction services. We find that especially the intention to adopt basic Internet services largely depends on the importance of using similar services in the mobile domain as on the fixed Internet. Several context-of-use predictors are partially or even fully mediated by fixed-mobile reinforcement. The results convey a positive message to operators that are betting on converged multimedia services that can be accessed from any device and from any fixed or mobile network.     

开拓信息市场 建设“首都信息化工程”

北京是全国政治，经济，文化的中心，更是全国重要的信息中心、在国民经济信息化中起着举足轻重的作用。北京电信作为“首都信息化工程”的重要参与者和建设者，在研究市场，开拓信息，推动计算机互联网络和信息产业的发展主主动出击，做了一些有益的努力和尝试，在促进计算机互联网应用，发展北京信息产业方面，取得了明显的社会效益。     

殊途而同归于新一代宽带IP网：欧美新兴和传统电信运营商发展战略剖析

近年来欧美等地出现了许多从铁道、石油、电力等工业起家的新的电信运营者,它们的发展经历了大规模兴建光纤网、组建宽带ＩＰ网、提供多样化业务三步曲。传统的电信运营公司则通过重新部署战略重点进行转轨以成为全方位的业务提供者。但新、老运营者在网络发展上均趋于新一代宽带ＩＰ网,业务发展重点则转向基于Ｉｎｔｅｒｎｅｔ的增值业务。     

Construction and performance analysis of 2-D variable-length variable-weight optical orthogonal codes

In this paper, a new generation algorithm of a two-dimensional variable-length and variable-weight optical orthogonal codes (2-D VLVWOOCs) is proposed. By analysis of the BER performance for the corresponding optical code division multiple access (OCDMA) system, it is shown that the users with different codewords have significant differences in performance. Users with heavier-weight address matrices always outperform those with lighter-weight address matrices, and shorter-length and longer-length matrices support high bit-rate and low bit-rate in OCDMA applications, respectively. Therefore, heavier-weight shorter-length matrices can accommodate high bit-rate and high-quality of services (QoS) (e.g., real-time video), and lighter-weight longer-length matrices can achieve low bit-rate and low-QoS (e.g., voice). The system performance becomes worse as the users concentrate on one type of service. Especially, a surge of the number of users with shorter-length matrices has particularly impact on system performance. Thus, the 2-D VLVWOOCs can be used to provide many different types of services with different rate-levels and different levels of QoS, and simultaneously make better use of bandwidth resources in optical networks.