28 research outputs found
Improving the performance of MIMO Relay Networks using Parallel Relays
No full textIn this thesis, we focus on improving the performance of MIMO relay communication systems using parallel relays and successive interference cancellation. We aim at minimising the mean-squared error of the signal waveform estimation at the destination node subjecting to transmit power constraints at the source and relay nodes. The joint source and relay matrices optimisation problems for parallel MIMO relay systems are highly nonconvex. We transform the problems into suitable forms which can be efficiently solved using standard convex optimization techniques. Both linear and nonlinear transceivers have been considered. The proposed algorithms have a significant performance improvement over the earlier approaches
Optimal Relay Design of Zero Forcing Equalization for MIMO Multi Wireless Relaying Networks
No full textIn this paper, we develop the optimal relay design for multiple-input multiple-output (MIMO) multi wireless relaying networks, when we consider the problem of zero-forcing processing is studied for multi-input multi- output multi-relay communication system in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe shadowing effects which communication links can be established only with the aid of relay node. The aim is to design the relay amplification matrix to maximize the achievable communication sum- rate through the relay, which in general amplifying-and- forward relaying mechanisms are considered. The zero forcing (ZF) algorithm has studied for a MIMO multi relay network by comparing its performance in terms of bit- error-rate (BER) at destination algorithm. In particular, we investigate its performance with and without using the ZF at the relay. Our results demonstrate that the system performance can be significantly improved by using the ZF algorithm at relay (optimal relay ZF algorithm)</jats:p
Investigating Successive Interference Cancellation in MIMO Relay Network
No full textIn this paper, we study the zero-forcing (ZF) and minimum mean-squared error (MMSE) algorithms for a multiple-input multiple-output (MIMO) relay network and compare their performance in terms of bit-error-rate (BER). In particular, we investigate their performance with and without using the successive interference cancellation (SIC) at the receiver. Our results demonstrate that the system performance can be significantly improved by using the SIC technique
“NASKAH RISALAH TAUHID : SEBUAH SUNTINGAN TEKS DISERTAI KAJIAN ANALISIS ISI ”
No full textApriana, Mia. 2019. "Manuscript of Minutes of Tawheed: An Edited Text Accompanied by Text Analysis". Thesis Undergraduate Program in Indonesian Literature. Semarang: Faculty of Cultural Sciences, Diponegoro University.
Advisor: Dr. M. Abdullah M. Hum and Drs. M. Muzakka, M. Hum.
The Manuscript of Tawheed (RT) text is an ancient text containing Islamic teachings such as the Pillars of Islam. This manuscript is stored in the house of Mr. Setyarso, having his address at Desa Jabungan, Rt 01 Rw 05 Kel. Hamlet, Kec. Sukoharjo. In this Tauhid Minutes Manuscript contains the Pillars of Islam which consist of the Creed and Salat which are the foundation of the Islamic religion.
In this study the authors analyzed using the theory of philology and pillars of Islam, which later became the basis of the steps of research work, philological theory in the form of inventory of manuscripts, descriptions of texts, manuscript transcriptions, edits and transcription of texts. While content analysis theory is used to uncover, understand and capture the messages contained in the text.
The author conducts a direct script search, the results of the analysis of this study are divided into two, namely (1) the teachings of monotheism in the form of creed (2) fiqh teachings include the procedure for doing the correct prayer. The results of the study show that the benefits of the Treatise of Tawheed texts are useful for Muslims.
Keywords: Tauhid Minutes, Content Analysis approac
Investigating Performance Zero-Forcing of Source Weighting Matrix in MIMO Relay Communication
No full textIn this paper, we study the zero forcing (ZF) algorithm fora two hop multiple-input multiple-output (MIMO) relaycommunication system consisting of one source node, onerelay node, and one destination node. We consideramplify-and-forward (AF) strategy at relay node anddestination node, respectively. We propose Pre-ZFequalization on the transmitter side. We have evaluatedthe proposed system by comparing with existingalgorithms. The proposed Pre-ZF equalization algorithmhas a significant improvement in the system bit-error-rate(BER) performance
Analisis Efektivitas Manajemen Proyek Infrastruktur di Dinas Pekerjaan Umum Perumahan Rakyat Kabupaten Nabire
No full textPentingnya manajemen proyek infrastruktur dalam mendukung pembangunan daerah. Hal ini mencakup tantangan yang dihadapi oleh Dinas PUPR Kabupaten. Penelitian ini bertujuan untuk menganalisis efektivitas manajemen proyek yang dilaksanakan oleh Dinas PUPR untuk mengidentifikasi faktor-faktor yang berkontribusi terhadap keberhasilan atau kegagalan proyek infrastruktur. Penelitian ini menggunakan pendekatan campuran (mixed methods), yang mengombinasikan metode kuantitatif dan kualitatif. Data dikumpulkan melalui kuesioner yang disebarkan kepada staf Dinas PUPR dan wawancara mendalam dengan pejabat terkait. Analisis statistik dilakukan untuk mengevaluasi data kuantitatif, sedangkan analisis tematik digunakan untuk data kualitatif. Metode ini bertujuan untuk memberikan gambaran yang komprehensif mengenai efektivitas manajemen proyek infrastruktur. Hasil penelitian menunjukkan bahwa efektivitas manajemen proyek dipengaruhi oleh beberapa faktor, termasuk perencanaan yang matang, pengelolaan risiko, serta keterlibatan masyarakat dalam proses pembangunan. Data menunjukkan bahwa 75% responden menganggap bahwa proyek infrastruktur yang dilaksanakan oleh Dinas PUPR memiliki tingkat efektivitas yang tinggi, namun masih terdapat tantangan terkait keterlambatan dan pembengkakan biaya pada beberapa proyek. Selain itu, hasil analisis juga mengungkapkan bahwa komunikasi yang baik antara semua pemangku kepentingan berkontribusi positif terhadap keberhasilan proyek. Kesimpulan dari penelitian ini menekankan pentingnya penerapan prinsip-prinsip manajemen proyek yang baik dan keterlibatan aktif dari semua pihak terkait untuk meningkatkan efektivitas proyek infrastruktur di Dinas PUPR Kabupaten Nabire. Penelitian ini juga merekomendasikan agar Dinas PUPR terus mengembangkan sistem monitoring dan evaluasi yang lebih efektif untuk proyek-proyek mendatang, serta meningkatkan pelatihan bagi staf mengenai manajemen proyek yang efisien. Hasil penelitian ini diharapkan dapat memberikan kontribusi bagi pengembangan kebijakan dan praktik manajemen proyek di tingkat lokal
Joint source and relay design for MIMO multi-relay systems using projected gradient approach
No full textIn this paper, we develop the optimal source precoding matrix and relay amplifying matrices for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes using the projected gradient (PG) approach. We show that the optimal relay amplifying matrices have a beamforming structure. Exploiting the structure of relay matrices, an iterative joint source and relay matrices optimization algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation at the destination using the PG approach. The performance of the proposed algorithm is demonstrated through numerical simulations
ANALYZING THE STUDENTS’ ENGLISH ACHIEVEMNET THROUGH COOPERATIVE GROUP DISCUSSION
No full textThe goal of this study was to make students able to communicate fluently using English in everyday life, using cooperative group discussion strategies to make students more active in interacting with others. To collect the data for this research, the writer used interview and questionnaire with the eighth grade students at junior high school 2 of Palembang. Each student will be given a paper like a questionnaire. The author discussed the results of the research that has been done, namely using the cooperative group discussion technique in learning speaking skills of students in the eighth grade. From the results of the questionnaire data processing, it can be concluded that cooperative group discussion techniques can improve students ''speaking skills". Most of the students (50%) of the 16 respondents answered fully agree, while the rest chose 8 (50%) of the 16 respondents answered agree. Then the dominant result is balanced. The overall results of the study showed that cooperative group discussions can effectively improve students' speaking skills, they actively conduct cooperative discussions with their friends. Allow them to have an opinion and help each other, without mocking or laughing at each other
Joint source and relay optimization for parallel MIMO relays using MMSE-DFE receiver
No full textIn this paper, we study the optimal structure of the source precoding matrix and the relay amplifying matrices for multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes. In particular, a nonlinear decision feedback equalizer (DFE) is used at the destination node, and the minimal mean-squared error (MMSE) criterion is used to detect the transmitted signal at each stream. We show that the optimal source precoding matrix and the optimal relay amplifying matrices have a beamforming structure. Using such optimal source and relay matrices and the MMSE-DFE receiver, a joint source and relay power loading algorithm is developed to minimize the MSE of the signal waveform estimation. Compared with existing algorithms for parallel MIMO relay networks, theproposed source and relay design together with the MMSE-DFE receiver has a significant improvement in the system bit-errorrate performance
Joint source and relay optimization for parallel MIMO relay networks
No full textIn this article, we study the optimal structure of the source precoding matrix and the relay amplifying matrices for multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes. Two types of receivers are considered at the destination node: (1) The linear minimal mean-squared error (MMSE) receiver; (2) The nonlinear decision feedback equalizer based on the minimal MSE criterion. We show that for both receiver schemes, the optimal source precoding matrix and the optimal relay amplifying matrices have a beamforming structure. Using such optimal structure, joint source and relay power loading algorithms are developed to minimize the MSE of the signal waveform estimation at the destination. Compared with existing algorithms for parallel MIMO relay networks, the proposed joint source and relay beamforming algorithms have significant improvement in the system bit-error-rate performance
