Power consumption control protocols are used to reduce nodes’ energy consumption in wireless ad-hoc network. Node controls the pattern of its neighbors by independently adjusting it’s transmit power. Transmit power of individual nodes are used to estimate the life time of battery. Energy efficiency is an important design consideration for these networks. In this paper, developed transmission po...

the new competitive environment changes the paradigm of power system operation. in the transmission area, open access process provides fair accessibility for all market participants. congestion management is one of the most important side effects of this new process. this paper proposes a new approach for congestion management which is based on both active and reactive re-dispatch of the networ...

In the deregulated power systems, transmission congestion is one of the significant and main problems of the electrical networks which can cause incremental cost in the energy. This problem has resulted to new challenging issues in different parts of power systems which there was not in the traditional systems or at least had very little importance. Transmission congestion happens when the maxi...

Flexible AC Transmission Systems (FACTS) controllers with its ability to directly control the power flow can offer great opportunities in modern power system, allowing better and safer operation of transmission network. In this paper, in order to find type, size and location of FACTS devices in a power system a Dedicated Improved Particle Swarm Optimization (DIPSO) algorithm is developed for de...

In this paper, an embedded frequency modulation (FM) transmission control software (SW) for a low power battery system is designed and implemented. The simultaneous translation systems for various languages are needed as so many international conferences and festivals are held in world wide. Especially in portable transmitting and receiving systems, the ability of long operation life is used fo...

This paper aims to design an energy efficient Medium Access Control (MAC) for IEEE 802.15.4 based Wireless Sensor Networks (WSN). This is achieved by replacing the currently existing common-range maximum transmission power with the concept of dynamic and adaptive transmission power control. Various parameters like Link Quality, Received Signal Strength, MAC collisions, are considered for exerci...

One of the main objectives of transmission power control (TPC) in wireless mesh networks (WMNs) for rural area applications is to guarantee successful packet transmission and reception (SPT-R) with low power consumption. However, the SPT-R depends on co-channel multiple access interferences (MAI) including the effects from hidden terminals. In this paper we investigate how MAI can be minimized ...

This paper presents a method to allocate the transmission network costs to users based on nodal pricing approach by regulating the nodal prices from the marginal point to the new point. Transmission nodal pricing based on marginal prices is not able to produce enough revenue to recover the total transmission network costs. However, according to the previous studies in this context, this met...

A power control algorithm with two prediction models based on an achievable signal-to-interference power ratio (SIR) has been proposed under a multipath Rayleigh fading environment in a code-division multiple-access (CDMA) mobile system. An achievable SIR is defined as the maximum–minimum SIR among all users at a particular time step. The corresponding mobile transmission powers are denoted as ...

This paper evaluates the effect of feedback transmission error on the performance of fixed-step and variable-step power control algorithms on the uplink of code division multiple access (CDMA) systems. The control mechanism is closed loop in that the algorithms are based on the feedback information of signal-tointerference ratio (SIR) measurement at the basestation. Under ideal conditions, vari...