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Low power error control for wireless links

Publications associées (99)

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Predictive ratio closed-loop power control for CDMA wireless systems

Ali H. Sayed

We discuss the limitations of conventional closed loop power control (CLPC). We derive a closed-form expression for the control error. We then propose two algorithms that reduce this error. Simulations show a reduced power error compared to current CLPC te ...

2002

Anchored Path Discovery in Terminode Routing

Jean-Yves Le Boudec, Ljubica Blazevic

Terminode routing, defined for potentially very large mobile ad hoc networks, forwards packets along anchored paths. An anchored path is a list of fixed geographic points, called anchors. Given that geographic points do not move, the advantage to tradition ...

2002

Dual Use of Superscalar Datapath for Transient-Fault Detection and Recovery

Babak Falsafi

Diminutive devices and high clock frequency of future microprocessor generations are causing increased concerns for transient soft failures in hardware, necessitating fault detection and recovery mechanisms even in commodity processors. In this paper, we p ...

2001

FEC Performances in Multimedia Streaming

Pascal Frossard

In this paper, the performances of packet-level media-independent FEC schemes are computed in terms of both packet loss ratio and average burst length of multimedia data after error recovery. The set of equations leading to the analytical formulation of bo ...

2001

Realisation of an Adaptive Audio Tool

Catherine Boutremans, Arnaud Meylan

Real-time audio over the best effort Internet often suffers from packet loss. So far, Forward Error Correction (FEC) seems to be an efficient way to attenuate the impact of loss. Nevertheless to ensure efficiency of FEC, the source rate must be continuousl ...

2000

Realisation of an Adaptive Audio Tool

Catherine Boutremans, Arnaud Meylan

Real-time audio over the best effort Internet often suffers from packet loss. At this time, Forward Error Correction (FEC) seems to be an efficient way to attenuate the impact of loss. Nevertheless to ensure efficiency of FEC, the source rate must be conti ...

2000

To code or not to code

Martin Vetterli, Michael Christoph Gastpar, Bixio Rimoldi

The theory and practice of digital communication during the past 50 years has been strongly influenced by Shannon's separation theorem. While it is conceptually and practically appealing to separate source from channel coding, either step requires infinite ...

2000

Scalable resource reservation for the Internet

For some time now, the design of architectures for providing dependable Quality of Service (QoS) on multimedia networks has been a busy topic in academia and industry. In this work we look at practical aspects of Quality of Service, and in particular at re ...

EPFL1999

Scalable Resource Reservation for the Internet

1999

Semi-random interleaver design criteria

Christina Fragouli

A spread interleaver of length N is a semi-random interleaver based on the random selection without replacement of N integers from 1 to N under a design constraint. This paper extends the spread-interleaver design method to multiple error events, based on ...

1999