Exact integral expressions are derived for calculating the symbol-error rate (SER) of multilevel quadrature amplitude modulation (MQAM) in conjunction with L-fold antenna diversity on arbitrary Nakagami fading channel. Both maximal-ratio combining (MRC) (in independent and correlated fading) and equal-gain combining (EGC) predetection (in independent fading) diversity techniques have been consi...

In this paper, we present the survey on MMSE Detector using space time diversity technique. The fulldiversity spacefrequency block codes (SFBCs) focused around orthogonal space-time block codes (OSTBCs). We studied that the Space Time Diversity Technique is fit for achieving full-differing qualities and rate-one attributes for two transmit reception apparatuses, despite the fact that the eviden...

Space-time block codes with orthogonal structures typically provide full-diversity reception and simple receiver processing. However, full-rate orthogonal codes for complex constellations have not been found for more than two transmit antennas. By using a genetic algorithm, rate1 space-time block codes that accommodate very simple receiver processing at the cost of reduced diversity are designe...

In order to enhance the availability and the offered Quality of Service (QoS), Land Mobile Satellite Systems (LMSS) will have the option to use simultaneous transmission via two or more satellite as diversity. In this paper the performance of a TDMA and CDMA single user return link employing such a diversity reception is investigated by means of computer simulation using a three state mobile sa...

In order to enhance the availability and the offered Quality of Service (QoS), Land Mobile Satellite Systems (LMSS) will have the option to use simultaneous transmission via two or more satellite as diversity. In this paper the performance of a TDMA and CDMA single user return link employing such a diversity reception is investigated by means of computer simulation using a multi state mobile sa...

In this paper, we propose and compare data sharing schemes and practical receiver designs for cooperative diversity in the cellular uplink. Specifically, we present new multi-user decode and forward (DF) protocols and an amplify and forward (AF) protocol, and we compare their performance in asynchronous uplink environments with low-complexity joint linear multipleaccess interference suppression...

Abstract High speed data transmissions are required for the next generation mobile communication systems. However, broadband mobile channel is composed of many propagation paths with different time delays, producing severe frequency-selective fading channel. Recently, multi-carrier code division multiple access (MC-CDMA) has been attracting much attention for the broadband wireless access in th...

Small scale fading signals resulting from multipath propagation can cause signal strength variations in the range of several dB. Resulting from the fluctuating signal strengths, the wake-up packet reception rate can decrease significantly. Using antenna diversity can greatly mitigate these effects. This article presents a novel wireless sensor node with wake-up receiver that uses an equal-gain ...