Learn More
This paper presents an energy-efficient medium access control protocol suitable for communication in a wireless body area network for remote monitoring of physiological signals such as EEG and ECG. The protocol takes advantage of the static nature of the body area network to implement the effective time-division multiple access (TDMA) strategy with very(More)
Body Area Networks (BAN) are a specific type of Network structure. They are spread over a very small area and their available power is heavily constrained. Hence it is useful to have gateway points in the network, such as nodes carried around the belt, that are less power constrained and can be used for network coordination. This network structure can(More)
Low Density Parity Check (LDPC) codes over GF(2<sup>m</sup>) are an extension of binary LDPC codes that have not been studied extensively. Performances of GF(2<sup>m</sup>) LDPC codes have been shown to be higher than binary LDPC codes, but the complexity of the encoders/decoders increases. Hence there iS a substantial lack of hardware implementations for(More)
Low Density Parity Check (LDPC) codes over GF(2 m) are an extension of binary LDPC codes that have not been studied extensively. Performances of GF(2 m) LDPC codes have been shown to be higher than binary LDPC codes, but the complexity of the encoders/decoders increases. Hence there is a substantial lack of hardware implementations for LDPC over GF(2 m)(More)
Keywords: Body sensor network Health care Dry surface sensors ECG Energy efficient wireless node a b s t r a c t Ubiquitous vital signs sensing and processing are promising alternatives to conventional clinical and ambulatory healthcare. Novel sensors, low power solutions for processing and wireless connectivity are creating new opportunities for wearable(More)
With the advent of deep submicron CMOS technology, process parameter statistical variations are increasing resulting in unpredictable device behaviour. The issue is even aggravated by low power requirements which are stretching transistor operation into near/sub threshold regime. Consequently, traditional delay models fail to accurately capture the circuit(More)
Nowadays, the technology advancements of sensors, low power mixed-signal/RF circuits, wireless communication and Wireless Sensor Networks (WSNs) have enabled the design of compact, low power, high performance and low cost solutions for a wide range of applications, surveillance, building monitoring, sports/fitness, and of particular interesting are(More)
—In communication systems, channel quality variation is a well known phenomenon, which fundamentally influences the decoding process. While most of the time, the transmission takes place in good signal to noise conditions, to satisfy QoS requirements in all cases, telecom platforms rely on largely over-designed hardware, which may result in energy waste(More)