Call blocking probability and bandwidth utilization of ofdm subcarrier allocation in next-generation wireless networks

2006 ◽  
Vol 10 (2) ◽  
pp. 82-84 ◽  
Author(s):  
Jui-Chi Chen ◽  
W.-S.E. Chen
Keyword(s):  
Wireless Networks ◽  
Blocking Probability ◽  
Subcarrier Allocation ◽  
Next Generation ◽  
Bandwidth Utilization ◽  
Call Blocking ◽  
Call Blocking Probability ◽  
Next Generation Wireless Networks

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

2013 ◽  
Vol 5 (4) ◽  
pp. 1-14
Author(s):  
Bhuvaneswari Mariappan ◽  
Shanmugalakshmi Ramachandran
Keyword(s):  
Heterogeneous Network ◽  
Blocking Probability ◽  
Design Parameters ◽  
Heterogeneous Environment ◽  
Bandwidth Utilization ◽  
Call Blocking ◽  
Call Blocking Probability ◽  
Connected Network ◽  
Always Best Connected ◽  
User Centric

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 available heterogeneous network. The selection of the ABC network is based on certain design parameters such as cost factor, bandwidth utilization, packet delivery ratio, security, throughput, delay, packet loss ratio and call blocking probability. In this paper, all the above mentioned design parameters are considered to evaluate the performance of Always Best Connected network under heterogeneous environment for mobile users. In addition, to select Always Best Connected network in a heterogeneous environment, a novel parameter namely recent call history-‘rch' is proposed to predict the call blocking probability (Cbp) of a network.The estimation of ‘rch' parameter in terms of Cbp avoids unnecessary hand-off and enhances the effective bandwidth utilization of a cellular network under heavy load condition.A QoS mapper submodule is proposed in the QoS broker module to predict the ‘rch' parameter of a network to select an optimum network. Further, a statistcal model based on Bayesian network using the data on recent call history is applied for Cbp estimation and simulated over various heterogeneous environment condition. The simulated results show improved performance of user centric applications when compared with non-predictive methods.

scholarly journals CAC DPLB MCN: A Distributed Load Balancing Scheme in Multimedia Mobile Cellular Networks

2016 ◽  
Vol 41 (4) ◽  
pp. 261-296
Author(s):  
Abhijit Sharma ◽  
Arvind Shah ◽  
Monish Chatterjee ◽  
Uma Bhattacharya
Keyword(s):  
Load Balancing ◽  
Dynamic Pricing ◽  
Service Providers ◽  
Blocking Probability ◽  
Fractional Frequency Reuse ◽  
Bandwidth Utilization ◽  
Best Interest ◽  
Call Blocking ◽  
Traffic Demand ◽  
Call Blocking Probability

Abstract The problem of non-uniform traffic demand in different cells of a cellular network may lead to a gross imbalance in the system performance. Thus, the users in hot cells may suffer from low throughput. In this paper, an effective and simple load balancing scheme CAC_DPLB_MCN is proposed that can effectively reduce the overall call blocking. This model considers dealing with multi-media traffic as well as time-varying geographical traffic distribution. The proposed scheme uses the concept of cell-tiering thereby creating fractional frequency reuse environment. A message exchange based distributed scheme instead of centralized one is used which help the proposed scheme be implemented in a multiple hot cell environment also. Furthermore, concept of dynamic pricing is used to serve the best interest of the users as well as for the service providers. The performance of the proposed scheme is compared with two other existing schemes in terms of call blocking probability and bandwidth utilization. Simulation results show that the proposed scheme can reduce the call blocking significantly in highly congested cell with highest bandwidth utilization. Use of dynamic pricing also makes the scheme useful to increase revenue of the service providers in contrast with compared schemes.

scholarly journals Multimedia Communications over Next Generation Wireless Networks

2010 ◽  
Vol 2010 (1) ◽  
Author(s):  
Liang Zhou ◽  
Athanasios V. Vasilakos ◽  
Laurence T. Yang ◽  
Naixue Xiong
Keyword(s):  
Wireless Networks ◽  
Multimedia Communications ◽  
Next Generation ◽  
Next Generation Wireless Networks

scholarly journals A Survey of Energy and Spectrum Harvesting Technologies and Protocols for Next Generation Wireless Networks

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 1737-1769
Author(s):  
Ashish Padhy ◽  
Sandeep Joshi ◽  
Sainath Bitragunta ◽  
Vinay Chamola ◽  
Biplab Sikdar
Keyword(s):  
Wireless Networks ◽  
Next Generation ◽  
Next Generation Wireless Networks
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