Analysis of Multi-Server Scheduling Paradigm for Service Guarantees during Network Mobility

Ahmad, Syed; Qadir, Muhammad; Akbar, Muhammad; Bouras, Abdelaziz
March 2012
Wireless Personal Communications;Mar2012, Vol. 63 Issue 1, p177
Academic Journal
Multi-server scheduling of traffic flows over heterogeneous wireless channels affix fresh concerns of inter-packet delay variations and associated problems of out-of-sequence reception, buffer management complexity, packet drops and re-ordering overhead. In this paper, we have presented an exclusive multi-server scheduling algorithm that is specifically tuned for mobile routers equipped with multiple wireless interfaces and has attained multiple care-of-address registrations with its home agent (HA). The proposed adaptive, Self-clocked, Multi-server (ASM) scheduling algorithm is based on predetermined transmission deadlines for each arrived packet at the mobile router. The mobile flows receive desired service levels in accordance with their negotiated service rates and are only constraint by the cumulative capacity of all active links. The major challenge lies in the handling of asymmetric channels to stitch into a unified virtual channel of higher capacity with reliable service guarantees during mobility. The sorted list of transmission schedules is used to assign physical channels in increasing order of their availability. This approach specifically encapsulates the physical layer disconnections during the handovers and ensures continuous service to ongoing flows. The proposed scheduling scheme is supplemented by an analytical model and simulations to verify its efficacy. The simulation results demonstrate higher degree of reliability and scalability of service provisioning to flows during mobility.


Related Articles

  • Gateway Node-Based Greedy Routing Algorithm for Efficient Packet Forwarding in Vehicular Ad Hoc Networks. A., Mohamed Abbas; P., Sheik Abdul Khader; M., Munir Ahamed Rabbani // International Journal of Engineering Science & Technology;2011, Vol. 3 Issue 5, p3640 

    In recent years, vehicular communications are one of the hottest research topics. It has also gained much attention in industry as well as academia. Vehicular Ad Hoc Networks (VANETs) are advances of the wireless communication technologies. Routing is one of the key research issues in VANETs as...

  • By the Numbers.  // Wireless Week;10/15/2004, Vol. 10 Issue 21, p40 

    Presents statistics on matters affecting the U.S. wireless communications sector, as of October 2004. Decline in the cost of wireless service; Need for wireless infrastructure to carry high-speed download packet access technology; Forecast on the mobile content market.

  • LTE Downlink Transmitter Simulation Using MATLAB. PIERZCHLEWSKI, JACEK; LARSEN, TORBEN // Microwave Journal;Oct2012, Vol. 55 Issue 10, p136 

    Long Term Evolution (LTE) is a state-of-the-art standard for wireless communication, currently in technical implementation, The standard has been defined by the 3GPP organization and is publicly available - every engineer, researcher or student can download the official specification from...

  • Characteristics of Agent-Based Hierarchical Diff-EDF Schedulability Over Heterogeneous Real-Time Packet Networks. Saleh, Moutaz; Othman, Zulaiha Ali; Saleh, Mohammed // European Journal of Scientific Research;Feb2009, Vol. 27 Issue 3, p431 

    Packet networks are currently enabling the integration of heterogeneous traffic with a wide range of characteristics that extend from video traffic with stringent QoS requirements to best-effort traffic requiring no guarantees. QoS guarantees can be provided in packet networks by the use of...

  • A Real-Time Measurement Algorithm for Available Bandwidth. Yi Yin; Weidong // International Journal of Communications, Network & System Scienc;Nov2009, Vol. 2 Issue 8, p746 

    Available bandwidth estimation is useful for route selection in overlay networks, QoS, and traffic engineering. Many measurement algorithms, such as Pathload, Pathchar, and Packet Transmission Rate (PTR) method, etc. have been proposed. PTR method sends a sequence of packet trains to...

  • Capacity Bound for Discrete Memoryless User-Relaying Channel. Ki-Ryang Moon; Do-Sik Yoo; Seong-Jun Oh // KSII Transactions on Internet & Information Systems;Mar2012, Vol. 6 Issue 3, p855 

    In this paper, we consider the discrete memoryless user relaying channel (DMURC) in which a user-relay switches its operational mode symbol-by-symbol. In particular, we obtain upper and lower bounds on the channel capacity for the general DMURC and then show that these the upper and lower bounds...

  • Successful Transmission Rate of Mobile Terminals with Agents in Segmented Ad Hoc Network. Arai, Kohei; Sugiyanta, Lipur // International Journal of Advanced Computer Science & Application;Jun2011, Vol. 2 Issue 6, p1 

    Mobile Wireless Ad-Hoc Network (MANET) is a special kind of network, where all of the nodes move in time. Random movement is the commonly used to model the mobility in this network. Beside as a host, each node is intended to help relaying packets of neighboring nodes using multi-hop routing...

  • Performance Modeling using RSVP for QoS Support for Audio and Video signal over Next Generation Network. Mishra, B. K.; Singh, S. K.; Shah, Ruchi // International Journal of Advanced Research in Computer Science;Jan/Feb2012, Vol. 3 Issue 1, p339 

    This In the near future there will be demand for seamless service across different types of network, so it's a significant issue of how to guarantee the quality of service (QoS) and support a variety of services. The challenges of new communication architecture are to offer better quality of...

  • Performance Analysis of Various Ad Hoc Routing Protocols in MANET using Variation in Pause Time and Mobility Speed. Paulus, Rajeev; Kumar, Priyanka D.; Philiips, Prinu C.; Kumar, Anil // International Journal of Computer Applications;Jul2013, Vol. 73 Issue 1-22, p35 

    A Mobile Ad-Hoc Network (MANET) is a collection of wireless mobile nodes that communicates with each other without using any existing infrastructure, access point or centralized controller. In MANET, as nodes moves in and out of the network, the topology of the network changes frequently and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics