Dynamic guard bandwidth scheme for wireless broadband networks

Soh, Wee-Seng; Kim, H.S.

doi:10.1109/infcom.2001.916784

Cited by 19 publications

References 25 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

A unified bandwidth reservation and admission control mechanism for QoS provisioning in cellular networks

Lim

Das

2004

Wireless Communications

View full text Add to dashboard Cite

SummaryWe propose a unified framework consisting of a differential bandwidth reservation (DBR) algorithm and a Quality of Service (QoS)-aware admission control scheme to provide QoS guarantees to on-going connections in cellular networks. The differential bandwidth reservation policy uses a sector of cells in making the bandwidth reservation for accepting a new call. Based on the distance of the target cells in the sectors, two different bandwidth reservation policies are applied to optimize the connection dropping rate (CDR), while maintaining a competitive connection blocking rate (CBR). In addition, two possible mobile terminal (MT) movements are analyzed using the DBR mechanism. In the first case, no knowledge of an MT's moving path is assumed to be known, while in the second case, prior knowledge of an user profile is used in bandwidth reservation, and it is called user profile-based DBR (UPDBR) algorithm. Using the DBR scheme, we propose an admission control algorithm that uses varying number of cells in a sector to meet admission decisions. Extensive simulation is performed to evaluate our methodology.Comparison of the proposed scheme with two prior schemes shows that our approach is not only capable of providing better QoS guarantees, but is also flexible in terms of using varying number of cells in satisfying the high-level QoS requirements.

show abstract

A unified bandwidth reservation and admission control mechanism for QoS provisioning in cellular networks

Lim

Das

2004

Wireless Communications

View full text Add to dashboard Cite

show abstract

A simple and scalable handoff prioritization scheme

Diederich

Zitterbart

2005

Computer Communications

View full text Add to dashboard Cite

Cellular networks, e.g., Universal Mobile Telecommunications System networks, will be based on the Internet Protocol (IP) to provide an efficient support for applications with bursty traffic characteristics, as, for example, issued by Web browsers or streaming applications. Such IP-based networks must include Quality of Service mechanisms to enable the usage of real-time applications, for example, mobile telephony. In wireless mobile networks this especially challenges handoff functions: handoffs should not lead to significant interruptions even though resource shortages after a handoff cannot be avoided completely.To overcome this problem, a simple and scalable handoff prioritization scheme called SiS-HoP is proposed. It dynamically reserves resources for handoff purposes. This way, SiS-HoP limits the number of sessions, which are interrupted in case of a handoff, to less than 1%. This is achieved without compromising the resource utilization in scenarios with many non-mobile terminals. In contrast to existing schemes, SiS-HoP is well-suited for future IP-based mobile networks with small cells where a high number of handoffs may occur during the lifetime of a session.

show abstract

Load balancing early handoff scheme for multimedia service in wireless cellular networks

Wang

2015

2015 Seventh International Conference on Advanced Computational Intelligence (ICACI)

View full text Add to dashboard Cite

Ahstract-This study developed a load balancing early handoff scheme that use the overlap in base stations in wireless cellular networks. The proposed scheme enables early transfer of part of a heavy base station load, in order to reduce the new call blocking probability (CBP) and handoff call connection dropping probability (CDP) as well as to increase the resource utilization of wireless networks. Since the scheme is triggered by a connection request received by the base station, it immediately reflects the loading of the base station. The proposed load balancing early handoff policy can be integrated in various call admission control schemes. The effectiveness of the load balancing early handoff scheme is verified by integrating it with DMTBR, a self-optimizing admission control scheme, to improve the system performance. Additionally, NS2 is used to simulate the wireless network with wrap-around model. The simulation results show that the proposed scheme can effectively improve the wireless network resource utilization.

show abstract

Dynamic guard bandwidth scheme for wireless broadband networks

Cited by 19 publications

References 25 publications

A unified bandwidth reservation and admission control mechanism for QoS provisioning in cellular networks

A unified bandwidth reservation and admission control mechanism for QoS provisioning in cellular networks

A simple and scalable handoff prioritization scheme

Load balancing early handoff scheme for multimedia service in wireless cellular networks

Contact Info

Product

Resources

About