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VTC
2006
IEEE
16 years 8 days ago
Accurate BER Analysis of Asynchronous DS-CDMA Systems in Ricean Channels
— The accurate Bit Error Rate (BER) calculation of an asynchronous Ricean-faded DS-CDMA system using random spreading sequences and BPSK modulation is studied in this paper. A ne...
Xiang Liu, Lajos Hanzo
DATE
2003
IEEE
189views Hardware» more  DATE 2003»
15 years 11 months ago
Energy-Aware Adaptive Checkpointing in Embedded Real-Time Systems
We present an integrated approach that provides fault tolerance and dynamic power management for a real-time task executing in an embedded system. Fault tolerance is achieved thro...
Ying Zhang, Krishnendu Chakrabarty
EUROPAR
2003
Springer
15 years 11 months ago
An Overview of the Blue Gene/L System Software Organization
Abstract. The Blue Gene/L supercomputer will use system-on-a-chip integration and a highly scalable cellular architecture. With 65,536 compute nodes, Blue Gene/L represents a new l...
George Almási, Ralph Bellofatto, José...
DEXAW
2002
IEEE
127views Database» more  DEXAW 2002»
15 years 11 months ago
Enhanced Multi-Version Data Broadcast Schemes for Time-Constrained Mobile Computing Systems
In this paper, we study the data dissemination problem in time-constrained mobile computing systems (TCMCS) in which maximizing data currency (minimizing staleness) and meeting tr...
Hei-Wing Leung, Joe Chun-Hung Yuen, Kam-yiu Lam, E...
ICASSP
2011
IEEE
14 years 10 months ago
Simplified EM channel estimation in LTE systems
In this paper, an iterative channel estimation algorithm is considered in LTE systems. A simplified expectation maximization (EM) based algorithm is proposed for channel estimati...
Yang Liu, Serdar Sezginer