Practical Performance Modeling: Application of the Mosel Language
Practical Performance Modeling: Application of the Mosel Language
System capacity in OFDMA-based WiMAX
ICSNC '06 Proceedings of the International Conference on Systems and Networks Communication
Wireless Personal Communications: An International Journal
Performance evaluation of admission control and adaptive modulation in OFDMA WiMax systems
IEEE/ACM Transactions on Networking (TON)
An Efficient Analytical Model for the Dimensioning of WiMAX Networks
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
An overview of next-generation mobile WiMAX technology
IEEE Communications Magazine
Relay technologies for WiMAX and LTE-advanced mobile systems
IEEE Communications Magazine
MIMO techniques in WiMAX and LTE: a feature overview
IEEE Communications Magazine
Capacity evaluation for IEEE 802.16e mobile WiMAX
Journal of Computer Systems, Networks, and Communications - Special issue on WiMAX, LTE, and WiFi interworking
Overview of mobile WiMAX technology and evolution
IEEE Communications Magazine
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
IEEE Journal on Selected Areas in Communications
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4G is promising a wireless broadband with data rates up to 1Gbps. The two candidate technologies for 4G are the Advanced Long Term Evolution (Advanced LTE) which is based on the 3GPP standards and the WiMAX 2.0 based on the IEEE 802.16 family of standards. The common feature of both technologies is that they will provide All-IP connectivity with flexible bit rates and quality of service guarantees for multiple classes of services including voice, mainly using voice over IP, data and video services. Most of the performance studies of 4G technologies use highly complex and sophisticated simulations due to the multiple complexity factors in investigating 4G technologies such as All-IP flexible bit rates, adaptive coding and modulation as well as the multi-services provided. These factors usually make any modelling attempt very difficult. This paper presents a numerical/analytical model for a 4G WiMAX cell based on a multi-dimensional Continuous-Time Markov Chain (CTMC) model. Performance measures were derived for the key performance indicators such as throughput and average bit rate per cell and per service class. By assuming minimum acceptable bit rates for certain quality of service guarantees, we derived measures for blocking probabilities. The model has been formulated and solved using MOSEL-2 (Modelling Specification and Evaluation Language) which captures the key features of a 4G system that affect services at session/call level. The resuls obtained from the model using sample parameters show that, the model can provide very useful insight to system behavior and can give good first indication to the performance of such a complex system.