Tradeoff Between Complexity and Memory Size in the 3GPP Enhanced aacPlus Decoder: Speed-Conscious and Memory-Conscious Decoders on a 16-Bit Fixed-Point DSP
This paper investigates tradeoff between complexity and memory size (speed-memory tradeoff) in the 3GPP enhanced aacPlus decoder based on a 16-bit fixed-point DSP implementation. In order to investigate this tradeoff, the speed- and the memory-conscious ...
An Electromechanical Film Sensor Based Wireless Ballistocardiographic Chair: Implementation and Performance
New sensor technologies open possibilities for measuring traditional biosignals in new innovative ways. This, together with the development of signal processing systems and their increasing computing power, can sometimes give new life to old measurement ...
Sign Bit Reduction Encoding For Low Power Applications
In this paper, a low power technique, called SBR (Sign Bit Reduction), which reduces the energy consumption in multipliers as well as data buses is proposed. The technique reduces the number of sign bits in the data transfer as well as in the ...
Low-Power Multiplier Design Using a Bypassing Technique
This paper presents a low power digital multiplier design by taking advantage of a 2-dimensional bypassing method. The proposed bypassing cells constituting the multiplier skip redundant signal transitions as well as computations when the horizontally ...
VHDL Design for Real Time Motion Estimation Video Applications
The VHDL design code and its implementation using 0.25 μm technology have been demonstrated for the real time video applications. The processing time of a frame running at 400 MHz was estimated to be 8.1 ms for QCIF and CIF Sequences, which accommodates ...
High-throughput Block Turbo Decoding: From Full-parallel Architecture to FPGA Prototyping
Ultra high-speed block turbo decoder architectures meet the demand for even higher data rates and open up new opportunities for the next generations of communication systems such as fiber optic transmissions. This paper presents the implementation, onto ...
Energy-Aware Loop Scheduling and Assignment for Multi-Core, Multi-Functional-Unit Architecture
Switching activity and instruction cycles are two of the most important factors in power dissipation when the supply voltage is fixed. This paper studies the scheduling and assignment problems that minimize the total energy caused by both instruction ...
Lifetime Maximization Based on Coverage and Connectivity in Wireless Sensor Networks
We consider information retrieval in a wireless sensor network deployed to monitor a spatially correlated random field. We address optimal sensor scheduling and information routing under the performance measure of network lifetime. Both single-hop and ...
Using Heterogeneity to Enhance Random Walk-based Queries
It is a well-known property of random walks that nodes with higher degree are visited more frequently. Based on this property, we propose the use of cluster-heads (high-degree nodes) together with a simple push-pull mechanism to enhance the performance ...
An Empirical Study of Collaborative Acoustic Source Localization
- Andreas Mantik Ali,
- Shadnaz Asgari,
- Travis C. Collier,
- Michael Allen,
- Lewis Girod,
- Ralph E. Hudson,
- Kung Yao,
- Charles E. Taylor,
- Daniel T. Blumstein
Field biologists use animal sounds to discover the presence of individuals and to study their behavior. Collecting bio-acoustic data has traditionally been a difficult and time-consuming process in which researchers use portable microphones to record ...
