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Αποτελέσματα 41-50 από 242
On multicast beamforming and admission control for UMTS-LTE
(2008)
Transmit beamforming for physical layer multicasting is emerging as an appealing transmission modality for next-generation cellular wireless systems, notably UMTS-LTE. Optimal design of the transmit beamformer(s) from a ...
Efficient Batch and Adaptive Approximation Algorithms for Joint Multicast Beamforming and Admission Control
(2009)
Wireless multicasting is becoming increasingly important for efficient distribution of streaming media and location-aware services to mobile and hand-held devices, network management, and software updates over cellular ...
Joint multiuser downlink beamforming and admission control: A semidefinite relaxation approach
(2007)
Multiuser downlink beamforming under quality of service (QoS) constraints has attracted considerable interest in recent years, because it is particularly appealing from a network operator's perspective (e.g., UMTS, 802.16e). ...
On-line storage management with distributed decision making for content-centric networks
(2011)
Content traffic proliferation in Internet makes more dire than ever the development of radical new network architectures, where information will be addressed by semantic attributes rather than the origin and destination ...
Achieving proportional fairness using local information in Aloha networks
(2004)
We address the problem of attaining proportionally fair rates using Aloha protocols at the medium access layer. We consider a wireless network where all nodes need not be in transmission ranges of each other. We show how ...
Downlink multi-user transmission for higher user speeds in IEEE 802.16m
(2009)
A dynamic resource allocation algorithm with beam steering is evaluated for providing broadband wireless access to mobile users of the emerging IEEE 802.16m air interface standard. Thanks to our design, the coverage area ...
Towards maximizing wireless testbed utilization using spectrum slicing
(2011)
As experimentation becomes one of the de-facto approaches for benchmarking, researchers are turning to testbeds to test, review and verify their work. As a result, several research laboratories build wireless testbeds, in ...
A new slicing scheme for efficient use of wireless testbeds
(2009)
The gradually growing need for testbed use so as networking algorithms to be validated in real environments, has given rise to optimal utilization of testbed resources. Despite the fact that, many laboratories around the ...
Wireless network coding with partial overhearing information
(2013)
We study an 1-hop broadcast channel with two receivers. Due to overhearing channels, the receivers have side information which can be leveraged by interflow network coding techniques to provide throughput increase. In this ...
Enabling sensing and mobility on wireless testbeds
(2012)
The inherent inability of simulation models to adequately express factors such as wireless signal propagation etc., can lead to incomplete evaluation of wireless protocols and applications. Thus, testing of proposed schemes ...