A Better Non Orthogonal Space Time Block Code - 1223 Words

Cooperative communication is a new concept of research and it is a powerful technique to mitigate fading in wireless relaying layout. Concerning with the fading problem, this paper is focuses to give a better non-orthogonal space-time block code (STBC) scheme and assimilate it in the cooperative relaying nodes for upgrading performance of the system. Golden coded has also been incorporated in IEEE 802.16 (Wi-MAX) standard as a full rate full diversity space-time code and proven to present a ranking performance in a wireless MIMO (Multiple Input Multiple Output) scenario than any other code. At the receiver, maximum likelihood detection of different symbol is achieved through decoupling of the signal transmit from different antenna rather than joint detection. In this paper multihop wireless relay consisting of source, relay and destination each equipped with two antennas have been taken into account using decode-and-forward cooperative protocol strategy in relay nodes. The simulation results support the effectiveness of the proposed scheme by offering better SER performance and increased spectral efficiency than other codes. KEYWORDS Cooperative communications, Golden code, Multihop relay networks, Decode-and-Forward protocol . INTRODUCTION In recent years, wireless multiple-input multiple-output (MIMO) system using antenna arrays are fetching attention owing to their significantly higher system capacity [1],[2]. Cooperative communication is now a concerning topic ofShow MoreRelatedThe Performance Of Space Time Block Codes ( Stbc )1220 Words   |  5 Pagesï ¿ ¼Performance of Space Time Block Codes(STBC) Anuj Mehta School of Electrical Engineering Telecommunication, UNSW Sydney, Australia Z3488506@zmail.unsw.edu.au Abstract— In the following paper we are going to discuss the different coding techniques such as Orthogonal STBC , Alamouti’s coding and their performance on a QPSK signal with Rayleigh fading. We will plot it for SNR values ranging from 0dB to 40 dB. In this we will be taking different combination for number of transmitting and the radiatingRead MoreIntroduction Of The Antenna Systems4702 Words   |  19 PagesMULTIPLE OUTPUT (MIMO): Out of all the systems MIMO system is much better performance. Multiple-input  multiple-output  (MIMO) technology, which increase  channel capacities, is now being used in many commercial systems. MIMO system provides link range without a need of additional bandwidth or without any increase in transmit power and offers increases in throughput. Fig 1.1.4 : MIMO Out of all the systems MIMO system is much better performance. Multiple-input  multiple-output  (MIMO) technology, whichRead MoreA Study On Antenna Hopping1780 Words   |  8 Pagestechnology is developed for the new generation mobile cellular communication. The advantage of MIMO communication can be divided into three main categories: Spatial multiplexing for enhancing the data transmission rate, transmit diversity using space time coding for enhancing the robustness (E.g. bit error rate BER) of the transmission and beam forming for improving other users [5]. Because of the enormous capacity increase MIMO systems gained a lot of interest in mobile communication research. OneRead MoreLiterature Review Cooperative Communication3956 Words   |  16 PagesCOOPERATIVE COMMUNICATION Background We have introduced a new form of diversity for the concept of mobile communications system of cooperation. Cooperation by mobile phone users for each user is assigned. Cooperation can be considered as a new form of space diversity, antenna diversity in the transmission process, however, and other complications, Intermobiles noisy channels, each phone has sent a separate message. (W. Yu and T. Lan, 2007, pp. 2646–2660) According to A. Goldsmith (2005), wireless communicationsRead MoreReport On Cellular Systems And Computer Science10329 Words   |  42 Pages Multiple Access schemes for cellular system 5. Frequency Division Multiple Access (FDMA) 6. Orthogonal Frequency Division Multiple Access (OFDMA) 7. Single Carrier- Frequency Division Multiple Access (SC-FDMA) 8. Time Division Multiple Access (TDMA) 9. TDMA Frame 10. TDMA Evolution 11. Global System for Mobile (GSM) 12. GSM Network Architecture 13. Interim Standard-136 14. Code Division Multiple Access (CDMA) 15. TDD FDD Duplex SchemesRead MoreMeasuring Heart Rate With A Smartphone3604 Words   |  15 Pagesenvironment. In this project, we use our fingers covering smartphone camera, filtering and signal band -pass filter, and the detection signal to calculate the BPM ( beats per minute ) of the peak. We also need to eliminate noise and smooth results by MATLAB code. 2. INTRODUCTION Many people are beginning to use smart phones. This is because we can download it can achieve a lot of features into the phone application. For example, some applications make it possible to find it contains the GPS position of theRead MoreAutomatic Railway Gate Control9546 Words   |  39 PagesANITS, for providing us this wonderful opportunity to strengthen our skills in the area of our interest. CONTENTS TITLE PAGE NO 1. INTRODUCTION†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..5 2. SYSTEM REQUIREMENTS†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦7 3. HARDWARE IMPLEMENTATION†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...9 3.1 Block diagram†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦....9 3.2 Working†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.10 3.3 Power supply†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.11 3.4 Regulator†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..13 3.5 Power supply waveforms†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..........15 4. SYSTEM SPECIFICATION †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦16 4.1Read MoreImprovement On Coexistence Of Lte Macro / Femtocell s Adaptive Interference Draining Using Rectangular Antenna s10053 Words   |  41 Pagesattained completed bright resource allocation schemes for small cells. In Heterogeneous Network, the mobile network is constructed with layers of small and large cells. This architecture is faced with the task of supply allocation (power, channel, time) for small cells in order to guarantee reliable and high quality service to both primary (macrocell) users as well as secondary (femtocell) users. In mobile network all users can be considered as nomadic, in the form of microcells, hot-spots, circulatedRead MoreComponents Based Software Engineering ( Cbse )5499 Words   |  22 Pagesdevelopment strategy arose.CBSE helps to deal with complexity by following a divide and conquer approach, modularising large softwares systems into smaller, reusable units called components. CBSE helps in decreasing the development cost of the syste ms, the time it takes to deliver to the customer, enhance the maintenance of the software and dependability on the system. Component-Based Software Engineering Process The Component-Based Software Engineering Process involves a) Recognition of candidate componentsRead MorePen-Style Personal Networking Gadget Package12728 Words   |  51 Pagesconcept uses five different pens to make a computer. One pen is a CPU, another camera, one creates a virtual keyboard, another projects the visual output and thus the display and another communicator (a phone). All five pens can rest in a holding block which recharges the batteries and holds the mass storage. Each pen communicates wireless, possibly Bluetooth.† A Pen-style Personal Networking Gadget Package It seems that information terminals are infinitely