Sciweavers

GLOBECOM
2007
IEEE
14 years 23 days ago
Amplify-and-Forward Capacity with Transmit Beamforming for MIMO Multiple-Relay Channels
In this paper, we consider a MIMO wireless relay network where communication between a source and a destination node is assisted by multiple relay nodes using the Amplifyand-Forwar...
Erhan Yilmaz, M. Oguz Sunay
GLOBECOM
2007
IEEE
14 years 23 days ago
On Modeling VoIP Traffic in Broadband Networks
With the general trend towards ubiquitous access to the Internet, more users will prefer to make voice calls through the Internet. VoIP as the application which facilitates voice c...
Ehsan Haghani, Swades De, Nirwan Ansari
GLOBECOM
2007
IEEE
14 years 23 days ago
Efficient Scheduling for Heterogeneous Services in OFDMA Downlink
We consider optimal allocation of resources to users in a downlink OFDMA system to support heterogeneous applications consisting of both deadline-sensitive (DS) and best-effort (BE...
Rajiv Agarwal, Vinay R. Majjigi, Rath Vannithamby,...
GLOBECOM
2007
IEEE
14 years 23 days ago
mQMA: Multi-Constrained QoS Multicast Aggregation
Traditional IP Multicast has been proposed in order to manage group communications over the Internet in a bandwidth efficient manner. Although this proposition has been well studie...
Naouel Ben Ali, Joanna Moulierac, Abdelfattah Belg...
GLOBECOM
2007
IEEE
14 years 23 days ago
OFDMA Downlink Resource Allocation for Ergodic Capacity Maximization with Imperfect Channel Knowledge
In this paper, we derive an optimal resource allocation algorithm for ergodic weighted-sum capacity maximization in OFDMA systems assuming the availability of only partial (imperfe...
Ian C. Wong, Brian L. Evans
GLOBECOM
2007
IEEE
14 years 23 days ago
Channel Measurements of an Indoor Office Scenario for Wireless Sensor Applications
Ad-hoc networks and sensor networks, where nodes communicate with each other without fixed infrastructure, are of great importance for many industrial, environmental, and safety-r...
Shurjeel Wyne, Telmo Santos, Fredrik Tufvesson, An...
GLOBECOM
2007
IEEE
14 years 23 days ago
Resource Efficient Survivable Clustering for Wireless Sensor Networks
Abstract-- In this paper, we address both lifetime and survivability issues in wireless sensor networks (WSNs). We present an easy-to-implement clustering method called DED (distri...
Mohammad Masud Hasan, Jason P. Jue
GLOBECOM
2007
IEEE
14 years 23 days ago
A Spectrally Efficient Transmission Scheme for Half-Duplex Decode-and-Forward Relaying
We propose a spectrally efficient transmission scheme for the half-duplex relay channel. In the proposed scheme, the relay combines N detected r-dimensional symbols and generates M...
Majid Nasiri Khormuji, Erik G. Larsson