In this paper, we propose a hybrid type-II Automatic Repeat reQuest (ARQ) scheme based on optimized Rate Compatible Punctured Convolutional (RCPC) codes combined with simple repetition codes. The proposed scheme has the prospect to provide high throughput over Rayleigh fading and AWGN channels. In order to design this scheme, di erent schemes based on di erent coding strategies were introduced ...

This paper presents a novel framework for generic construction of hybrid encryption schemes secure against chosen ciphertext attack. Our new framework yields new and more efficient CCA-secure schemes, and provides insightful explanations about existing schemes that do not fit into the previous frameworks. This could result in finding future improvements. Moreover, it allows immediate conversion...

Uniformly stable semidiscrete approximation schemes are desirable for constructing approximate solutions of certain optimal control problems for distributed parameter systems. We discuss construction of uniformly stable spline-based approximation schemes for a scalar delay equation. A method is used which employs an equivalent inner product. Convergence is established via a `hybrid' Trotter-Kat...

Identifying communities in complex networks is an effective means for analyzing complex systems, with applications in diverse areas such as social science, engineering, biology and medicine. Finding communities of nodes and finding communities of links are two popular schemes for network analysis. These schemes, however, have inherent drawbacks and are inadequate to capture complex organization...

In this paper we present Hybrid Temporal/SNR Scalable Multiple Description Coding. For efficient Peer-toPeer streaming more than two descriptions are required. In our P2P-TV video streaming network, we also need scalability and error resilience. To increase the number of descriptions we use SNR enhancement layers with channel codes (MD-FEC). The robustness against failures in the P2P network, s...

In a CDMA system, the performance of channel matched filter receivers are limited by the presence of multi-user interference. Hence receivers must be capable of suppressing these interferences. Interference suppression or interference cancellation works by subtracting the interfering users from the received signal, thus allowing an improved error rate for the user of interest. In this paper a h...

In this work, we formulate a state estimation scheme for a nonlinear hybrid system that is subjected to stochastic state disturbances and measurement noise using an interacting Multiple-Model Algorithm (IMM). In particular, we propose the use of an IMM Extended Kalman Filter (IMM-EKF) and an IMM Unscented Kalman filter (IMM-UKF), which belongs to the class of derivative free estimators to carry...

Hybrid Neural Network/Hidden Markov Model (NN/HMM) systems have been found to yield high quality phone recognition performance. One issue with modelling the Context Dependent (CD) NN/HMM is the robust estimation of the NN parameters to reliably predict the large number of CD state posteriors. Previously, factorization based on conditional probabilities has been commonly adopted to circumvent th...

MVP is a framework allowing websites to use diverse knowledgebased authentication schemes. One application is its use in conducting ecologically valid user studies of authentication under the same experimental conditions. We introduce MVP and its key characteristics, discuss several authentication schemes, and offer lessons learned from running 9 hybrid (lab/online) and 3 MTurk user studies ove...

In this contribution we derive an expression of the Cramér-Rao bound for hybrid cooperative positioning, where GNSS information is combined with terrestrial range measurements through exchange of peer-to-peer messages. These results provide a theoretical characterization of achievable performance of hybrid positioning schemes, as well as allow to identify critical network configurations and dev...