The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Low density parity check codes nowadays use in modern system due to their excellent performance. There are different message passing algorithm for LDPC codes to decode. In this paper, we have mention bit flip algorithm in brief and gave its bit error performance over AWGN channel via simulation result. For this communication, we use BPSK i.e. Binary phase shift keying digital modulation technique...
Power consumption in test becomes a higher barrier for consideration in test of any combinational circuit is high during test mode as in its normal mode of functioning as enormous power dissipation seriously affects the chip reliability. Many techniques are proposed to lower down the test power. In scan based design, rippling transition created by test patterns shifting along the scan chain not only...
In this paper, cluster head and vice cluster head selection is discussed and a method of energy efficient routing is presented based on both particle swarm optimisation technique and V-LEACH protocol. Performance comparison with existing leach protocol shows proposed protocol provides better performance to minimize energy dissipation in the transmission and increases the life time of the wireless...
Micro sensor nodes in wireless sensor networks (WSN) have limited energy. Communication stops when these nodes lose their energy completely. In this paper, presented on Multi-Hop LEACH energy efficient routing protocol for wireless Sensor networks, a method of routing is suggested based on both particle swarm optimisation technique and V-LEACH protocol and multi-hop network design. To minimize energy...
In the emerging cloud computing paradigm, electronic healthcare system becomes increasingly motivated to outsource their complex data management systems. While those data may contain sensitive personal health data, the cloud servers cannot be fully secured. Encryption is a promising way to protect the confidentiality of the outsourced health data, but it also faces some difficulty to performing effective...
This paper proposes a low complexity low-density parity check decoder (LDPC) design. The design mainly accomplishes a message passing algorithm and systolic high throughput architecture. The typical mathematical calculations are based on the observation that nodes with high log likelihood ratio provide almost same information in every iteration and can be considered as stationary, we propose an algorithm...
Keeping up with the recognition of FinFET(FIN shaped Field Effect Transistor) devices, this paper focuses on the different flavors of FinFETs. FinFET technologies appeared to outperform conventional planar technologies for the circuit designs where power and less area low is required. Since long era, there is a trade-off between the speed, power and area. Therefore, FinFET Technology finds the major...
Digital signal processing algorithms are implemented using fixed point arithmetic due to expected area and power savings. However, the recent research shows that floating point arithmetic can be used by using the reduced precision format instead of standard IEEE floating point format which will avoid the algorithm design and implementation difficulties occurs in fixed point arithmetic. In this paper,...
Devotion towards own body is one of the important factor considered in this era. The equipments which provide results at run time and also accuracy maintained are provided by the electronic engineers. With the help of new technology of Raspberry Pi, health care system can be monitored. In this type of technology same area network is shared by multiple users which helps in monitoring. Wireless communication...
Packet classification has proved to be an important challenge in network processing. It requires comparing each packet with rules and forwarding the packet according to the highest priority matching rule. The criteria are comprised of a set of rules that specify the content of specific packet header fields to either software or hardware. Packet classification is widely used as a core function for...
This paper presents the design and implementation of an efficient VLSI architecture for 3GPP-LET. Turbo decoder mainly consists of soft-input soft-output (SISO) decoders to achieve high throughput and interleaver and deinterleaver. Turbo decoder comprises of Branch Metric Unit(BMU), State Metric unit(SMU), Log-Likelihood Ratio Computation Unit(LLR), Add Compare Select Unit. Throughput of Turbo decoder...
In wireless communication systems like mobile or satellite network a specified band is allotted. Each network has its own allotted spectrum for safe and secure communication. Transferring secure data and receiving it is important and difficult task. Secure transmission of data needs to hide the message signals. Such security to message signal is provided by adding a random noise sequences to it, i...
This paper presents the design and implementation of an efficient VLSI architecture for 3GPP-LET. Turbo decoder mainly consists of soft-input soft-output (SISO) decoders to achieve high throughput and Convolutional interleaver. Turbo decoder comprises of Branch Metric Unit(BMU), State Metric unit(SMU), Log-Likelihood Ratio Computation Unit(LLR), Add Compare Select Unit. ACS (Add Compare &...
Many classes of high-performance Low-density parity check codes are based on parity check matrices composed of permutation sub matrices. The emulation-simulation framework further allows the algorithm and implementation to be iteratively redefined to improve the error floor performance of message passing decoder. Log-Like hood-Ratio (LLR) based Belief-Propagation (BP) algorithm is presented for Low...
In wide communication network, signals are transferred and receive. In case of wireless systems transferring a signal over a wide spectrum and providing a security to such signal is a tough task. While transferring a signal extra security is needed to hide the original message signal, to provide such security Pseudo Noise sequence is used. PN sequence uses linear feedback shift register (LFSR). A...
Packet Classification is a core function used in an internet router, firewall, network security and quality of services. A flow of packets is decided by the header fields of incoming packets. Software solutions for packet classification are not suitable for wire-speed processing and are not secure. For wirespeed and secure network access, hardware solutions for packet classification are mandatory...
In today's world the very strong photo-editing tools are available that are able to manipulate the images into a large extent that one would not have imagined in yesteryears. The use of this type of tools poses many questions on the authenticity of the images and there is need to determine whether the image is authentic or forged before making any decision. As image forgery has become one of the common...
Low Power VLSI Circuit has great demand in present world; Power consumption is very less in CMOS circuit Design, so we built SRAM using CMOS which consume less power and have less read and write time. By fabricating millions of transistor over a single chip this decrease Device size and increase chip density of circuit. The charging and discharging of bit line and bit line is depends on barred and...
Multiplier is a vital block in high speed Digital Signal Processing Applications. With the more advance techniques in wireless communication and high-speed ULSI techniques in recent era, the more stress in modern ULSI design under which main constraints are Power, Silicon area and delay. In all the high-speed application to Very Large Scale Integration fields, fast speed and less area is required...
Binary 128 arithmetic finds a hard in floating point application of Quadruple Precision. The major component of 128 bit Fused Multiply Add (FMA) unit with multimode operations are Alignment Shifter, Normalization shifter, Dual Adder by CLA. The main contribution of this paper is to reduce the latency. The technical challenges in existing FMA architectures are latency and higher precision. The precision...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.