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A multiobjective evolutionary algorithm based on the parallel evolution of multiple single objective populations and Pareto archive population is proposed. For each single objective population, single objective evolutionary algorithm is applied to optimize separately each of multiobjective functions, where individuals generated by tournament selection from the union of single objective and Pareto...
ALS-MAC is a medium access control protocol for sensor networks based on location aware nodes. This paper extends the functionality of ALS-MAC with an extra mode. T-mode is incorporated to transport data from children to a parent in consistence with a routing tree. ALS-MAC modifies the tree to save energy via aggregated packets. Also, considering multihop optimization under ALS-MAC, we proved that...
In mobile sensor networks with a small number of nodes, because nodes' radio communication range does not cover the whole sensing area, every node has to move closer to the data sink to deliver its sensed data. Thus, the power consumption to deliver the sensed data to the data sink becomes large. In this paper, we propose two novel methods that nodes construct a temporal network to deliver the sensed...
The error floor of bit-interleaved coded modulation with iterative decoding (BICM-ID) can be minimized for a particular constellation by maximizing the harmonic mean of the squared-Euclidian distances of signals whose labels differ in just one bit position. This problem has been formulated as an instance of the Quadratic Assignment Problem (QAP) and solved using the Reactive Tabu Search (RTS). In...
In this paper, puncturing and path pruning are combined for convolutional codes to construct a new coding scheme for unequal error protection (UEP), called the hybrid punctured and path-pruned convolutional codes. From an algebraic viewpoint, we show that the hybrid codes not only inherit all the advantages of the conventional rate-compatible punctured convolutional codes and path-compatible pruned...
The study investigated the dependance of absorbed mobile phone radiation in terms of specific absorption rate (SAR) values on head size. A dipole and a generic phone model were used to simulate mobile phone at 900/835 MHz, and standard SAM phantom as an adult head model. Three child head models were derived after uniformly scaling down standard head in all directions by 90%, 80% and 70%. A numerical...
In this research, two different approaches for detecting seizure patterns in newborns' Electroencephalogram (EEG) signals are compared. The first proposed approach is a time-frequency (TF) based method, in which, the discrimination between seizure and non-seizure states is based on the TF distance between the consequent segments in the EEG signal. Three different TF measures and three different reduced...
In this paper a new optimization problem for decision support is presented and motivated with statistical interpretations. This research was motivated by a real world example from automotive industry. Namely, the problem of passenger occupation detection in cars. It is of fundamental importance to detect the possible occupation of a front seat with a child in order to eventually disarm the corresponding...
In this paper a new optimization problem for decision support is presented and motivated with statistical interpretations. This research was motivated by a real world example from automotive industry. Namely, the problem of passenger occupation detection in cars. It is of fundamental importance to detect the possible occupation of a front seat with a child in order to eventually disarm the corresponding...
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