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Multiple Description H.264 Coding with Redundant Pictures

Pascal Frossard, Ivana Radulovic

Multiple description coding (MDC) o®ers a competitive so- lution for video transmission over lossy packet networks, with a graceful degradation of the reproduced quality as the loss rate increases. This paper illustrates how redundant pictures, an error re ...

2007

On capacity of line networks

Christina Fragouli, Daniela Tuninetti, Urs Niesen

We consider communication through a cascade of discrete memoryless channels (DMCs). The source and destination node of this cascade are allowed to use coding schemes of arbi- trary complexity, but the intermediate relay nodes are restricted to process only ...

Institute of Electrical and Electronics Engineers2007

Optimal Delay-Rate-Reliabiliy Tradeoff in Networks with composite Links

Suhas Diggavi

Networks need to accommodate diverse applications with different Quality-of-Service (QoS) requirements. New ideas at the physical layer are being developed for this purpose, such as diversity embedded coding, which is a technique that combines high rates w ...

2007

Essays on Corporate Governance

Rüdiger Fahlenbrach

This dissertation comprises two essays oncorporate governance. The second essay, "Founder-CEOs and Stock MarketPerformance," compares the stock market performance of firms headed byfounder-CEO firms with successor-CEO firms. Eleven percent of the largest U ...

University of Illinois2005

The evolution of the water sector in Europe: an institutional analysis of possible scenarios

Matthias Finger, Patricia Alves Luis Manso

In this paper we present six scenarios about the possible evolution of the water supply and sanitation sector in Europe, considering both liberalised and non-liberalised environments. The scenarios were developed around three macro-storylines, namely (1) p ...

2005

A General Formula for Valuing Defaultable Securities

Pierre Collin Dufresne

Previous research has shown that under a suitable no-jump condition, the price of a defaultable security is equal to its risk-neutral expected discounted cash flows if a modified discount rate is introduced to account for the possibility of default. Below, ...

2004

Rate Performance Objectives of Multi-hop Wireless Networks

Jean-Yves Le Boudec

We consider the question of what performance metric to maximize when designing ad-hoc wireless network protocols such as routing or MAC. We focus on maximizing rates under battery lifetime and power constraints. Commonly used metrics are total capacity (in ...

2003

Partial oxidation of toluene to benzaldehyde and benzoic acid over model vanadia/titania catalysts

Albert Renken, Lioubov Kiwi, Fabio Rainone

Pure and K-doped vanadia/titania catalysts have been studied by transient response method and in situ DRIFTS during toluene partial oxidn. They were characterized by FT-Raman spectroscopy, TPR, TPD of pyridine and XPS. In order to elucidate the role of dif ...

2003

Monitoring of temperature effects on animal cell metabolism in a packed bed process

Urs von Stockar, Ian William Marison

Animal cell (Chinese Hamster Ovary) concn. was detd. online in a packed bed process using dielec. spectroscopy. This enabled the evaluation of the effect of temp. on specific metabolic rates during 3 mo of continuous culture. The effect of low cultivation ...

2002

A convergence theorem for controlled queues with partial observations

Razvan Cristescu

We consider a queuing problem in which both the service rate of a finite-buffer queue and its rate of arrivals are functions of the same partially observed Markov chain. Basic performance indices of this device, such as long term throughput and loss rates, ...

2002