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Floating-point arithmetic plays major role in computer systems. The single precision floating point arithmetic operations are multiplication, division, addition and subtraction. Among all these multiplication is extensively used and involves composite arithmetic functions. The single precision (32-bit) floating point number split into three parts namely Sign part, and Exponent part and Mantissa part...
Floating point operations like multiplication, division, addition and subtraction are important in digital signal processing applications. Out of all these, frequently used operation is multiplication and it changes the performance of single precision floating point multiplication in terms of delay and area. In this paper, performance analysis of single precision floating point multiplier is done...
In recent years, wireless networking plays a prominent role because of its easy installation and flexibility. Among the various wireless domains, Zigbee based Wireless Dynamic Sensor Networks (WDSN) pose a good support to the dynamics that arise when the nodes are induced with mobility. In the Zigbee based Wireless Dynamic Sensor Network (WDSN), major consideration is on utilizing the energy efficiently...
Zigbee is a wireless networking standard which is broadly used in applications such as remote control and sensor applications. They are suited for operation in coarse radio environments and in isolated locations. In Zigbee based wireless networks, various routing protocols such as reactive routing protocols and Zigbee Tree Routing (ZTR) protocol were initially proposed. Among them, ZTR is widely used,...
Floating-point arithmetic plays major role in computer systems. Many of the digital signal processing applications use floating-point algorithms for execution of the floating-point computations and every operating system is answerable practically for floating-point special cases like underflow and overflow. The single precision floating point arithmetic operations are multiplication, division, addition...
In advanced wireless communication, Turbo codes play a crucial role in different applications, such as mobile radio, computerized video, long-haul terrestrial wireless satellite communications, deep space communication and military applications and so on. The turbo codes are designed with the help of Recursive Systematic Convolutional and are separated by interleaver, which (component used to rearrange...
In the recent networks, a multiuser downlink MIMO-OFDM (Multiple-Input Multiple-Output Orthogonal Frequency-Division Multiplexing) systems associated with Coordinated Multipoint (CoMP) technique ensures to fulfill the individual rate target across all users is considered. The CoMP technique enables to share the channel superiority measurements and schedules the transmissions, allowing for more efficient...
Rapid advances in the technologies of wireless communication have led to the evolution and empowerment of Wireless Body Area Network (WBAN). The health care applications are improved by using WBAN with the usage of different variety of sensors for monitoring the patient in order to diagnose any life threatening diseases. In recent past, several experts have concentrated in building system architecture...
Advanced techniques of fourth generation (4G) Long Term Evolution (LTE) network provides high data rate with guaranteed Quality of Service (QoS) for real time applications like interactive gaming, High Definition (HD) video streamings and voice services. Maintaining the QoS in a delay bound violated traffic poses a challenging task. In this paper, the performance analysis on energy savings of User...
Wireless Sensor Network (WSN) is one of the promising platforms for a variety of applications such as military based applications to health-oriented applications. However transmission of image content through WSN has several bottlenecks including limited bandwidth, low power and less memory space. Therefore, image transmission over WSN needs special attention than other applications. To overcome the...
This paper presents a new time-frequency signal analysis method, called Frequency Slice Wavelet Transform (FSWT) for analysis of non-stationary signals. Spectral analysis using the Fourier Transform is a powerful technique for stationary time series where the characteristics of the signal do not change with time. For non-stationary time series like modulated signals, the spectral content changes with...
Power saving is the major issue in the present scenario of 4th generation (4G) Long Term Evolution (LTE) wireless communication. The usage of User Equipment (UE) for the real time applications in LTE network causes an excessive power consumption. The real time application that deals with high data rate processing in the UE drains the battery power quickly. The Discontinuous Reception (DRX) mechanisms...
The growth of smart mobile phone applications are multifold every day. Each application is developed with the goal of handling high speed data rate with reliable transmission and reception. Long Term Evolution (LTE) network is the promising solution to support such a high data rate applications with an IP addressing system. In converse, conserving energy in User Equipment (UE) battery to meet those...
With the rapid advancement of wireless communication technology, the growth of Wireless Sensor Network (WSN) and its usage in different fields is increasing day by day. The processing of sensor output for image based applications is a major problem. A number of techniques have been proposed to solve this problem. Among them, image compression scheme is one of the techniques that perform better for...
Wireless Sensor Network (WSN) is used to collect and send various kinds of messages from sensor nodes to a Base Station (BS). WSN consists of low-cost nodes with limited battery power. But the battery replacement is not easy for WSN with thousands of physically embedded nodes. Hence energy efficient routing protocol should be employed to offer a long network life time. To achieve the aim, it is not...
The Discrete Wavelet Transform (DWT) has a huge number of applications in science and engineering technology. It is used for signal coding, to represent a discrete signal in a more redundant form, often as a preconditioning for data compression. Practical applications can also be found in signal processing, digital communications and many others. There are several techniques available for DWT like...
International Telecommunication Union (ITU) approved that Long Term Evolution(LTE)-Advanced comes under fourth generation (4G) communications systems, with expected downlink peak data rates in excess of 1Gbps (for Release 10 and beyond). LTE PHYsical layer (PHY) specifications are introduced by the Third Generation Partnership Project (3GPP). In this paper, the performance analysis of MIMO-LTE networks...
Long Term Evolution(LTE)-Advanced is comes under fourth generation (4G) communications systems, approved by the International Telecommunication Union (ITU), with expected downlink peak data rates in excess of 1Gbps (for Release 10 and beyond). LTE PHYsical layer (PHY) specifications are given by the Third Generation Partnership Project (3GPP). In this paper, the throughput analysis of MIMOLTE networks...
Wireless Sensor Networks (WSNs) are an emerging field of engineering with various applications. The motivation is due to the low power and small size sensor nodes used in the network. It has started to emerge as the next generation wireless standard for Low-Rate Wireless Personal Area Networks (LRWPAN). The IEEE 802.15.4 standard is adopted as a communication protocol for LR-WPAN which supports low...
In recent years, Multiply-Accumulate (MAC) unit is developing for various high performance applications. MAC unit is a fundamental block in the computing devices, especially Digital Signal Processor (DSP). MAC unit performs multiplication and accumulation process. Basic MAC unit consists of multiplier, adder, and accumulator. In the existing MAC unit model, multiplier is designed using modified Radix-2...
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