For Rayleigh fading channels, there exists an interesting similarity between resistive circuits and time and path diversity mechanisms in multihop wireless sensor networks. A resistor-like circuit element, the erristor, representing the normalized noise-to-signal ratio, is introduced. Given an end-to-end packet delivery probability (as a QoS requirement), the nonlinear mapping from link recepti...

The identity of patients must be protected when patient data are shared. The two most commonly used models to protect identity of patients are L-diversity and K-anonymity. However, existing work mainly considers data sets with a single sensitive attribute, while patient data often contain multiple sensitive attributes (e.g., diagnosis and treatment). This article shows that although the K-anony...

In this paper, we present error-resilient Internet video transmission using path diversity and rate-distortion optimized reference picture selection. Under this scheme, the optimal packet dependency is determined adapting to channel characteristics and video content, to achieve a better trade-off between coding efficiency and forming independent streams to increase errorresilience. Packets are ...

AbstractField test of space-time (ST) equalizers for combating inter-symbol interference (ISI) at base station, was conducted in microand macro-cell environments in central Tokyo area. Test results indicate that the ST equalizers provide significant better bit error rate (BER) than an array processor alone dose, due to both space and path diversity while suppressing long-delayed path. Furthermo...

Erasure resilient FEC codes in off-line packetized streaming rely on time diversity. This requires unrestricted buffering time at the receiver. In real-time streaming the playback buffering time must be very short. Path diversity is an orthogonal strategy. However, the large number of long paths increases the number of underlying links and consecutively the overall link failure rate. This may i...

Multipath routing allows for load balancing and fast re-routing in order to improve the reliability and the efficiency of the network. Current IP routers only support Equal Cost MultiPath (ECMP) which guarantees that the forwarding paths do not contain loops. However, ECMP provides limited path diversity. In this paper, we present an efficient algorithm that allows routers to enable more path d...

The bit error rate (BER) performance of a two-dimensional (2-D) RAKE receiver, in combination with transmit diversity on the downlink of a wide-band CDMA (W-CDMA) system, is presented. The analyses assume correlated fading between receive antenna array elements, and an arbitrary number of independent but nonidentical resolvable multipaths combined by the RAKE receiver in the general Nakagami-m ...

Packet transmission over computer networks is the main reference framework for most information technology applications. Packet loss is one of the main problems affecting performance. Various techniques have been proposed to protect packets from losses, one is distributing information on the network in order to exploit the characteristics of the network itself allowing adaptivity and flexibilit...

Recent research [17,26] suggests that path diversity, in which end systems choose from a set of network-constructed paths, can achieve much of the benefit of source routing such as improved reliability, but avoids its scaling and policy issues. This work examines a less explored performance aspect of path diversity: end-to-end throughput. When an end system can access a diverse set of paths, it...