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Queue-aware uplink bandwidth allocation and rate control for polling service in IEEE 802.16 broadband wireless networks
(2006-06-30)
IEEE 802.16 standard defines the air interface specifications for broadband access in wireless metropolitan area networks. Although the medium access control signaling has been well-defined in the IEEE 802.16 specifications, ...
Call-level and packet-level quality of service and user utility in rate-adaptive cellular CDMA networks: A queuing analysis
(2006-12-31)
A queuing analytical model is presented to evaluate call-level and packet-level quality of service (QoS) metrics in the uplink of a voice/data cellular code division multiple access ( CDMA) network. In this model, a ...
Adaptive fair subcarrier/rate allocation in multirate OFDMA networks: Radio link level queuing performance analysis
(2006-11-30)
This paper presents a semi-analytical methodology for radio link level performance analysis in a multirate "orthogonal frequency-division multiple-access" (OFDMA) network with adaptive fair rate allocation. Multirate ...
Topological phase transitions in frustrated magnets
(2006-07-31)
The role of topological excitations in frustrated Heisenberg antiferromagnets between two and three spatial dimensions is considered. In particular, the antiferromagnetic Heisenberg model on a stacked triangular geometry ...