Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
Effective capacity: a wireless link model for support of quality of service
IEEE Transactions on Wireless Communications
Rayleigh fading channels in mobile digital communication systems .I. Characterization
IEEE Communications Magazine
Capturing important statistics of a fading/shadowing channel for network performance analysis
IEEE Journal on Selected Areas in Communications
Throughput analysis of TCP on channels with memory
IEEE Journal on Selected Areas in Communications
Spectrum-aware channel and PHY layer modeling for ns3
Proceedings of the Fourth International ICST Conference on Performance Evaluation Methodologies and Tools
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To efficiently support quality of service (QoS) in future wireless networks, it is important to model a wireless channel in terms of connection-level QoS metrics such as data rate, delay and delay-violation probability. To achieve this, in [7], we proposed and developed a link-layer channel model termed effective capacity (EC) for flat fading channels. In this paper, we apply the effective capacity technique to modeling frequency selective fading channels. Specifically, we utilize the duality between the distribution of a queue with superposition of N i.i.d. sources, and the distribution of a queue with a frequency-selective fading channel that consists of N i.i.d. sub-channels, to model a frequency selective fading channel. In the proposed model, a frequency selective fading channel is modeled by three EC functions; we also propose a simple and efficient algorithm to estimate these EC functions. Simulation results show that the actual QoS metric is closely approximated by the QoS metric predicted by the proposed EC channel model. The accuracy of the prediction using our model can translate into efficiency in admission control and resource reservation.