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IWCMC
2009
ACM
14 years 10 days ago
Cross-layer resource allocation scheme for multi-band high rate UWB systems
Abstract- In this paper, we investigate the use of a crosslayer allocation mechanism for the high-rate ultra-wideband (UWB) systems. The aim of this paper is twofold. First, throug...
Ayman Khalil, Matthieu Crussière, Jean-Fran...
GLOBECOM
2007
IEEE
13 years 11 months ago
CAC for Multibeam Opportunistic Schemes in Heterogeneous WiMax Systems Under QoS Constraints
Spatial scheduling in a heterogeneous WiMax Downlink channel, based on partial Channel State Information at the Transmitter (CSIT), is carried out through a multibeam opportunistic...
Nizar Zorba, Ana I. Pérez-Neira
JSAC
2007
130views more  JSAC 2007»
13 years 7 months ago
Cross-layer QoS Analysis of Opportunistic OFDM-TDMA and OFDMA Networks
Abstract— Performance analysis of multiuser orthogonal frequency division multiplexing (OFDM-TDMA) and orthogonal frequency division multiple access (OFDMA) networks in support o...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
JSAC
2007
103views more  JSAC 2007»
13 years 7 months ago
Impact of Pilot Design on Achievable Data Rates in Multiple Antenna Multiuser TDD Systems
Abstract— In this paper we study the effects of practical pilotassisted channel state estimation on the achievable information theoretic data rates (uplink and downlink) in a mul...
Dragan Samardzija, Narayan B. Mandayam
JSAC
2007
98views more  JSAC 2007»
13 years 7 months ago
Optimum Power Allocation for Single-User MIMO and Multi-User MIMO-MAC with Partial CSI
Abstract— We consider both the single-user and the multiuser power allocation problems in MIMO systems, where the receiver side has the perfect channel state information (CSI), a...
Alper Soysal, Sennur Ulukus