noise removal operation is commonly applied as pre-processing step before subsequent image processing tasks due to the occurrence of noise during acquisition or transmission process. a common problem in imaging systems by using cmos or ccd sensors is appearance of  the salt and pepper noise. this paper presents cellular automata (ca) framework for noise removal of distorted image by the salt an...

The asymptotic statistical resolution limit (SRL), denoted by d, characterizing the minimal separation to resolve two closely spaced far-field narrowband sources for a large number of observations, among a total number of MZ2, impinging on a linear array is derived. The two sources of interest (SOI) are corrupted by (1) the interference resulting from the M 2 remaining sources and by (2) a broa...

A fundamental choice in femtocell deployments is the set of users which are allowed to access each femtocell. Closed access restricts the set to specifically registered users, while open access allows any mobile subscriber to use any femtocell. Which one is preferable depends strongly on the distance between the macrocell base station (MBS) and femtocell. The main results of the paper are lemma...

In this paper, we study the interference scenario where multiple Device-to-Device (D2D) pairs and one cellular use share the same spectrum resources, and propose a novel D2D signal-to-interference-plus-noise ratio (SINR) improvement algorithm called DSIA from the perspective of precoding and decoding. Numerical results show that in comparison with the traditional spectrum orthogonal scheme, the...

Mid-infrared (MIR) imaging and spectroscopic observations are presented for a well defined , sample of eight closely interacting (CLO) pairs of spiral galaxies that have overlapping disks and show enhanced far-infrared (FIR) emission. The goal is to study the star formation distribution in CLO pairs, with special emphasis on the role of 'overlap starbursts'. Observations were made with the Infr...

The design of a new versatile control system that will underlie future releases of the automated model-building package ARP/wARP is presented. A sophisticated expert system is under development that will transform ARP/wARP from a very useful model-building aid to a truly automated package capable of delivering complete, well refined and validated models comparable in quality to the result of in...

Clearly, setting the parameter λ to 1 reduces (2) to (1). Here, we allow λ to be an arbitrary positive number for ease of further discussions. We note that the power minimization in (2) can be efficiently solved with a single SDP [2]. We next establish a close relation between the max-min SINR problem (5) in [1] and the power minimization problem in (2). We first show that (2) can be solved via...

We study the multi-broadcast problem in multi-hop wireless networks under the SINR model deployed in the 2D Euclidean plane. In multi-broadcast, there are k initial rumours, potentially belonging to different nodes, that must be forwarded to all n nodes of the network. We present deterministic algorithms for multi-broadcast for different settings that reflect the different types of knowledge ab...

Our work is to study the Minimum Latency Broadcast Scheduling problem in the geometric SINR model with power control. With power control, sensor nodes have the ability to adjust transmitting power. While existing works studied the problem assuming a uniform power assignment or allowing unlimited power levels, we investigate the problem with a more realistic power assignment model where the maxi...