Physiological signals such as body temperature, heart rates and electrocardiogram (ECG) have been widely utilized for health monitoring applications. In order to detect the signals without cumbersome wires, heterogeneous body sensor nodes including wearable or implantable biomedical devices are wirelessly connected to each other forming a personal body sensor network (BSN) [1]. The physiologica...

This paper presents design and simulation of a transceiver system for active phased array at C-Band using multi-technology based chips. Multi-technology feature is new emerging technique for complex RF and microwave systems designs where transceiver chips based on different fabrication technologies like MMIC, LTCC and microstrip are integrated on same RF board. Design and simulation of full tra...

Since WLAN OFDM Transceiver on both IEEE 802.11a and IEEE 802.11b is the most usable technique to achieve a high performance communication, we can, by means of some modifications evaluate an IEEE 802.11g Transceiver behavior against some link impairments as frequency offset, Inter-carrier interference, phase noise, etc. In this paper, we focus on the analysis of simulation results of a link imp...

WSN is wireless sensor network which consist of numbers of nodes. Transceiver has main role in WSN node. Transceiver consists of both transmitter as well as receiver. Power amplifier, low noise amplifier, mixer, voltage control oscillator are the main block of Transceiver. Power amplifiers are a key part of RF transmitters. 2.4 GHz RF CMOS power amplifier implemented with SMIC 0.13μm is propose...

In this paper, linear transceiver design for multi-hop amplify-and-forward (AF) multi-input multi-output (MIMO) relaying systems with Gaussian distributed channel estimation errors is investigated. Commonly used transceiver design criteria including weighted mean-square-error (MSE) minimization, capacity maximization, worst-MSE/MAX-MSE minimization and weighted sum-rate maximization, are consid...

AbstructFor indoor wireless communication systems, radio frequency (RF) transceivers need to be placed strategically to achieve optimum communication coverage at the lowest cost. Unfortunately, the coverage region for a transceiver depends heavily on the type of building and on the placement of walls within the building. Traditionally, therefore, transceiver locations have been selected by huma...

The RF transceivers play an important role in the wireless medical monitoring system. Compared to the conventional RF transceiver, the transceiver in medical sensor nodes has more stringent constraints in terms of power consumption, size limitation and the quality of transmission. Digital modulation schemes used in the wireless transceivers plays an important role in the performance of the tran...

One of the NASA technology development program at the Jet Propulsion Laboratory aims to increase the information return capability while reducing the size of the spacecraft via laser communications. The deep space optical transceiver developed under this program employs puke position modulation (PPM) for both uplink and downlink transmissions. An integral part of the transceiver is the developm...

a direct conversion modulator-demodulator with even harmonic mixers with emphasis on noise analysis is presented. the circuits consist of even harmonic mixers (ehms) realized with antiparallel diode pairs (apdps). we evaluate the different levels of i/q imbalances and dc offsets and use signal space concepts to analyze the bit error rate (ber) of the proposed transceiver using m-ary qam schemes...

A novel transceiver design for ultra wideband (UWB) communication systems using the channel phase precoding (CPP) technique is proposed in this work. With the CPP-UWB transceiver, we encode data symbols using the reversed order of the channel phase. A simple phase estimation algorithm is presented for the CPP-UWB implementation. Owing to its ability to coherently combine the channel magnitude o...