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A Low-power IEEE 802.15.6 human body communication (HBC) fully compatible transceiver is implemented in 130 nm CMOS process. In this work, the proposed HBC transceiver satisfying all the standard requirements has four key features for low power consumption which includes: 1) low-power analog active filters for TX spectral mask: 30% power reduction; 2) delayed locked loop (DLL) based BPSK receiver...
The need for wideband data converters (DAC and ADC) with increasingly higher sampling frequencies and data resolutions are driven by new applications, as well as advances in existing ones. The bandwidth limitations of current I/O technologies, such as CMOS or LVDS, force the need for higher pin counts on converter products. The JESD204 standard interface offers several advantages over its CMOS and...
The paper provides review of based theory of analysis vehicle communication data buses. The techniques and principles for understanding the structure of communication particular data bus used in automotive. Understanding the principles of particular data bus is important for their diagnosis and faults diagnosis of the vehicle. Data structure of particular buses is shown primarily in the paper. All...
Future best-connected wireless solutions will involve a multitude of network standards between which the user can switch in order to optimize a set of benefits such as cost and performance. As a result of this convergence, the hardware design of the mobile device will require knowledge about the restrictions imposed by the upper networking layers. This paper starts by presenting the requirements for...
In this paper, we address the issue of transmission power control (TPC) in wireless ad hoc networks. Power control plays an important role in energy saving and network performance enhancement. However, the existing TPC schemes either face the problem of hidden and exposed terminal or have additional hardware requirements. We propose a novel distributed power control protocol, called Receiver Initiated...
Effects of improved channel estimation are studied for a proposed IEEE 802.11n OFDM MIMO system. Three channel estimation methods are considered: maximum likelihood (ML), time-domain truncation (TDT) and model-based (MB). TDT and MB are particularly useful when the channel delay spread is short. For an MMSE receiver, MB shows a 1-2.5 dB improvement over ML on the packet error rate performance for...
Correlative minimum shift keying (MSK), a second order polynomial modulation scheme known as tamed frequency modulation (TFM), is a constant envelope type of modulation with a perfect peak to average power ratio (PAPR), besides the property of low out of band power. We apply the linearized TFM to the single carrier transmission with frequency domain equalization (SC/FDE) concept. We then obtain a...
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