A Delay-Centric Dynamic Resource Allocation Algorithm for Wireless Communication Systems Based on HNN

This paper proposes a dynamic resource-allocation (DRA) algorithm for packet data services in wireless communication systems based on Hopfleld neural networks (HNNs). The resource-allocation algorithm assumes a delay-centric approach in that it maximizes resource utilization of the overall system wh...

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Vydáno v:IEEE transactions on vehicular technology Ročník 57; číslo 6; s. 3653 - 3665
Hlavní autoři: Calabuig, D., Monserrat, J.F., Gomez-Barquero, D., Cardona, N.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York, NY IEEE 01.11.2008
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
3G mobile communication
Algorithms
Allocations
Antennas
Applied sciences
Artificial intelligence
Bit rate
Computer science; control theory; systems
Connectionism. Neural networks
Delay
Dynamic resource allocation (DRA)
Dynamical systems
Dynamics
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Formulations
Hardware
Heuristic algorithms
Hopfield neural networks (HNNs)
Neural networks
Organization and planning of networks (techniques and equipments)
Packet radio networks
Radiocommunications
Resource management
Scheduling algorithm
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Wireless communication
Wireless communication systems
Wireless communications
wireless networks
Performance evaluation
Hopfield neural nets
Wireless telecommunication
Resource allocation
General packet radio service
Information rate
Dynamic resource allocation (DRA)
Implementation
Hopfield neural networks (HNNs)
Dynamic allocation
Optimal allocation
Delay time
Mobile radiocommunication
wireless networks
Scheduling
Algorithm
Information transmission
Bit allocation
Telecommunication system
UMTS system
Wireless network
Dielectric resonator antennas
Planning
Resource management
Service quality
ISSN:0018-9545, 1939-9359
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Popis
Shrnutí:This paper proposes a dynamic resource-allocation (DRA) algorithm for packet data services in wireless communication systems based on Hopfleld neural networks (HNNs). The resource-allocation algorithm assumes a delay-centric approach in that it maximizes resource utilization of the overall system while minimizing the packet delay. The real-time (RT) working capability of HNN hardware implementation means that a very powerful scheduling DRA algorithm can be obtained. A generic formulation of the algorithm is presented to establish the optimal bit rate allocation. In addition, some illustrative examples of this formulation are given, considering specific wireless communication systems, such as general packet radio service (GPRS) or universal mobile telecommunications system (UMTS). To be more precise, the performance of the proposed DRA algorithm is evaluated in a realistic UMTS scenario, considering both RT and nonreal-time (NRT) services. To obtain the best resource distribution and fulfill the different quality-of-service (QoS) levels required by RT and NRT services, the new HNN-based delay-centric DRA algorithm is performed twice. Initially, only the RT services are considered, and following this, all the NRT services are taken into account. The results reveal that the proposed DRA algorithm outperforms other reference algorithms in terms of not only average packet delay but the allocated total bit rate as well.
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ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2008.919619