Results 271 to 280 of about 9,518 (289)

Research on the calculation of call blocking probability in large-scale multimedia network

IEE Mobility Conference 2005. The Second International Conference on Mobile Technology, Applications and Systems, 2005
The call blocking probability (CBP) is one of the major parameters imposed to describe the quality of service (QoS) in network. With the rapid increasing of network scale, conventional Kaufman recursion method and convolution method are unsuccessful for data overflow problem in large-scale multimedia network.
null Xing Xu, null Ye Wu, null Feng Suili   +2 more
openaire   +1 more source

Decreasing call blocking probability of Broadband TV services by a channel access control scheme

International Congress on Ultra Modern Telecommunications and Control Systems, 2010
The current trend of network convergence has been best exemplified by the recent emergence of new services such as Broadband TV (BTV) offered by Telcos around the world. A very relevant research topic is to improve the quality of experience (QoE).
Junyu Lai, Bernd E. Wolfinger, Stephan Heckmüller   +2 more
openaire   +1 more source

Generalized Queueing Model for Call Blocking Probability and Resource Utilization in OFDM Wireless Networks

IEEE Communications Letters, 2011
Chen and Chen have dealt with a queueing model for obtaining some performance measures of OFDM wireless systems. Recently, Pla et al. have proposed the multi-class Erlang loss model as a more adequate one. However, the above two models considered only subcarriers as system resources, even though power is also another limited resource of OFDM systems ...
Chunhyun Paik, Yong S. Suh
openaire   +1 more source

Hybrid Channel Allocation with GA and PSO to reduce Call Blocking Probability in Cellular Network

Proceedings of the Second International Conference on Information and Communication Technology for Competitive Strategies, 2016
In Cellular communication network the spectrum have to be efficiently utilized (reused) for fulfilling the increasing numbers of users else will lead to call drop. Channel allocation techniques are employed for reduction of call blocking probability (CBP). Reducing CBP may elevate the interference, which may not satisfy the total traffic demand.
Sharada Narsingrao Ohatkar, Dattatraya S. Bormane   +1 more
openaire   +1 more source

Call blocking probabilities for dynamic and fixed assignment of a single channel in a linear cellular array

Journal of High Speed Networks, 1996
We consider the problem of assigning a single channel in a linear cellular array, and compare the call blocking probabilities for dynamic and fixed channel assignment (DCA and FCA). Our principal concern is the derivation of closed-form expressions for these blocking probabilities as a function of the array size and traffic load, assuming a Markov ...
Alexander L. Wijesinha, Deepinder P. Sidhu, Srikanta P. Kumar   +2 more
openaire   +1 more source

Some analysis of call blocking probabilities in hierarchical WDM networks offering multiclass service

International Journal of Communication Systems, 2010
AbstractWe envision a large‐scale multiclass optical network in which lightpaths are dynamically set up and terminated between source and destination nodes and these lightpaths traverse through a number of interconnected WDM networks in different administrative domains.
Kalyan Kuppuswamy, Daniel C. Lee 0001
openaire   +1 more source

Exact computation of time and call blocking probabilities in multi-traffic circuit-switched networks

Proceedings of INFOCOM '94 Conference on Computer Communications, 2002
Studies a model of a network of links with the capacity of an integer number of bandwidth units that are shared amongst calls subdivided in K classes. A class is typified by the bandwidth requirement on each link and the average holding time of its calls. Calls arrive according to a Bernoulli-Poisson-Pascal process.
Harry A. B. van de Vlag, Geert A. Awater
openaire   +1 more source

Estimation of Always Best Connected Network in Heterogeneous Environment Based on Prediction of Recent Call History and Call Blocking Probability

International Journal of Mobile Computing and Multimedia Communications, 2013
Presently, the emergence of 4G heterogeneous network has attracted most of the user centric applications like video chatting, online mobile interactive classroom besides voice services. To facilitate such bandwidth hungry multimedia applications and to ensure QoS (Quality of Service), Always Best Connected (ABC) network is to be selected among ...
Bhuvaneswari Mariappan, Shanmugalakshmi Ramachandran   +1 more
openaire   +1 more source

An Acceptable Trade-off between New Call Blocking and Handoff Call Dropping Probabilities in Multimedia Cellular Networks

4th Annual Communication Networks and Services Research Conference (CNSR'06), 2006
Providing multimedia services with quality of service (QoS) guarantees in next generation wireless cellular networks poses great challenges due to the scarce radio bandwidth. Therefore, effective management of the limited radio resources is important to enhance the network performance.
openaire   +1 more source

Call–burst blocking of ON–OFF traffic sources with retrials under the complete sharing policy

Performance Evaluation, 2005
Ioannis D Moscholios, Michael D Logothetis   +1 more
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