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Vehicular ad-hoc network (VANET) is complex wireless communication networks on which mobile nodes or vehicles are placed at different mobile position communicate with each other for exchanging information through wireless network. As the nodes are not fixed and randomly distributed, hence to establish connection, we used wireless channel. To have effective connection between nodes, ad-hoc on demand...
Many Floating Point operations have been acknowledged to be useful for many real time graphic and multimedia application as well as DSP processors. Many Digital Signal Processing algorithms use Floating point arithmetic, which requires millions of calculations per second to be performed. For such stringent requirements, design of fast, precise and efficient circuits is the goal. This brief presents...
In this paper, we propose an efficient architecture based on pre-computation for Viterbi decoders incorporating T-algorithm. Through optimization at both algorithm level and architecture level, the new architecture greatly shortens the long critical path introduced by the conventional T-algorithm. The design example provided in this work demonstrates more than twice improvement in clock speed with...
An architecture to simplify the circuit implementation of analog-to-digital (A/D) converter in a sigma-delta (S?) modulator is proposed. The two-step quantization technique is utilized to design architecture of S? modulator. The architecture is based on dividing the A/D conversion into two time steps for achieving resolution improvement without decreasing speed. The novel architecture is designed...
Switched capacitor (SC) modulator performance is prone to various nonidealities, especially at integrator stage, which affects overall circuit performance. In this paper a set of models are proposed which takes into account SC sigma-delta (ÓÄ) modulator nonidealities, such as sampling jitter since switching circuitry is included, kT/C noise, and operational amplifier parameters (noise, finite dc gain,...
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