scholarly journals Models for Call Acceptance Based on Handoff Guarantees

2008 ◽  
Vol 2008 (1) ◽  
Author(s):  
Mostafizur Rahman ◽  
Attahiru Sule Alfa
Keyword(s):  
Call Acceptance

A Novel Call Admission Control Algorithm for Next Generation Wireless Mobile Communication

2017 ◽  
Vol 4 (3) ◽  
pp. 83-95
Author(s):  
T. A. Chavan ◽  
P. Saras
Keyword(s):  
Wireless Network ◽  
Research Work ◽  
Service Level Agreement ◽  
Priority Queue ◽  
Service Level ◽  
Next Generation ◽  
Handoff Call ◽  
Call Acceptance ◽  
Customer Services ◽  
Wireless Mobile Communication

Wireless communication technology is progressing very vastly. With this change in technology customer services for multimedia and non-multimedia are increasing day by day. But due to limited resources of the wireless network, we need to design an efficient CAC algorithm to enhance QoS levels for end users. The Quality of service (QoS) enhancement in the wireless network is related to making an efficient use of current network resources and the optimization of the users. Call acceptance in CAC is one of the challenge in mobile cellular networks to ensure that the acceptance of a new call into a resource limited wireless network should not deviate the service level Agreement (SLAs) at the time of conversations. In the next generation wireless network, CAC has the direct impact on QoS for user calls & overall system performance. To handle handoff calls and new calls in cellular network channel reservation scheme have been already proposed to reserve system bandwidth for higher priority call for CAC. This earlier proposed scheme is not as per the required level of satisfaction because the available reversed bandwidth is not allocated properly in case of least handoff rate. In this, the authors like to present a new channel borrowing scheme where new non real time (NRT) calls can make use of reserved channels. It can borrow this reserved channel on a temporary basis and after this immediately if any handoff call enters the current cell and no any other channels are available, then it will pre-empt the channel from an earlier borrowed NRT user if exists. This pre-empted NRT call is kept in the priority queue to consider its service when any channel becomes free. The number of NRT calls in the queue should not be large to avoid delayed service. The fundamental objective of the proposed scheme to design of the system for evaluating the results and comparing with the results of the existing system. From the results of current research work, it is observed that proposed scheme decreases call dropping probability which increase slightly in call blocking rate over high-density handoff call rate.

scholarly journals Adaptive control of call acceptance in WCDMA network

2013 ◽  
Vol 61 (3) ◽  
pp. 72-98
Author(s):  
Milan M. Šunjevarić ◽  
Goran Z. Đukanović ◽  
Nataša M. Gospić
Keyword(s):  
Adaptive Control ◽  
Call Acceptance

A simple call acceptance procedure in an ATM network

1990 ◽  
Vol 20 (1-5) ◽  
pp. 197-202 ◽  
Author(s):  
Carsten Rasmussen ◽  
Jens Sorensen
Keyword(s):  
Atm Network ◽  
Call Acceptance

Source-independent call acceptance procedures in ATM networks

1991 ◽  
Vol 9 (3) ◽  
pp. 351-358 ◽  
Author(s):  
C. Rasmussen ◽  
J.H. Sorensen ◽  
K.S. Kvols ◽  
S.B. Jacobsen
Keyword(s):  
Atm Networks ◽  
Call Acceptance

A Usability and Diary Study Assessing the Effectiveness of Call Acceptance Lists

1992 ◽  
Vol 36 (3) ◽  
pp. 216-220 ◽  
Author(s):  
John P. Chin ◽  
Richard D. Herring ◽  
M. Elliott Familant
Keyword(s):  
Diary Study ◽  
Telephone Number ◽  
Voice Messaging ◽  
Call Acceptance ◽  
Telephone Calls ◽  
To Receive

Nuisance or unwanted calls have always been a problem to subscribers of phone services. One possible solution is a network based service that allows subscribers to control the calls they receive by using a call acceptance list. When the call acceptance list is activated, all callers not on the list would be automatically routed to a voice messaging system. Those callers on the list would be allowed to ring the subscriber's telephone. This study assessed the effectiveness of call acceptance lists in reducing unwanted telephone calls. Participants used a prototype telephone-based interface to establish a list of telephone numbers from which they would always accept calls. At the same time, they logged each of their incoming calls in a diary, recording the telephone number that originated the call, and whether they wished to receive the call. The call acceptance list significantly reduced the number of unwanted calls from 12% to 1%. However, this list also substantially reduced the number of wanted calls answered by the subscriber from 88% to 33%. Although a call acceptance list appears to be effective in blocking unwanted calls from reaching the subscriber, the list would also route a substantial number of wanted calls to voice messaging. If the majority of the calls are wanted, the results of this experiment suggest that a call rejection list would be a more effective method for preventing unwanted calls. Fewer wanted calls would be rejected while preventing unwanted calls from ringing through.

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