Performance of MMSE MIMO Receivers: A Large N Analysis for Correlated Channels

Linear receivers are considered as an attractive low-complexity alternative to optimal processing for multi-antenna MIMO communications. In this paper we characterize the performance of MMSE MIMO receivers in the limit of large antenna numbers in the presence of channel correlations. Using the replica method, we generalize our results obtained in arXiv:0810.0883 to Kronecker-product correlated channels and calculate the asymptotic mean and variance of the mutual information of a MIMO system of parallel MMSE subchannels. The replica method allows us to use the ties between the optimal receiver mutual information and the MMSE SIR of Gaussian inputs to calculate the joint moments of the SIRs of the MMSE subchannels. Using the methodology discussed in arXiv:0810.0883 it can be shown that the mutual information converges in distribution to a Gaussian random variable. Our results agree very well with simulations even with a moderate number of antennas.Comment: Invited article at the IEEE Vehicular Technology Conference, Barcelona 200

Pengembangan Aplikasi Pencarian Rute Terbaik pada Sistem Operasi Android (Studi Kasus Rute Trans-Jogja)

Layanan Trans-Jogja memiliki banyak rute perjalanan, dimana setiap rutenya akan melewati banyak tempat pemberhentian (shelter). Pengguna Trans-Jogja hanya dikenakan satu kali pembayaran apabila tidak keluar dari shelter meskipun harus berpindah-pindah jalur. Pengguna akan kesulitan menghitung waktu total perjalanan, total jarak ataupun jumlah pergantian bis dikarenakan tidak adanya informasi ataupun jadwal setiap armada yang lengkap pada setiap shelter.Penelitian ini berhasil membangun aplikasi pencarian rute terbaik (berdasarkan jadwal keberangkatan, jarak terdekat dan jumlah pergantian armada) berbasis Google Map pada sistem operasi Android dengan studi kasus Trans-Jogja. Pengguna dalam aplikasi ini akan dapat menentukan node awal pencarian dan node akhir pencarian dengan beberapa cara, yaitu manual menunjuk shelter, otomatis menunjuk shelter awal berdasarkan posisi saat ini, dan menunjuk shelter terdekat dengan Point Of Interest (POI) tertentu. Berdasarkan hasil pengujian dapat disimpulkan bahwa waktu yang diperlukan untuk me

Analisis Pengaruh Pendapatan Nasional Dan Tingkat Suku Bunga Terhadap Penghimpunan Dana Pihak Ketiga Pada Bank Umum Di Indonesia

The principal problem of this study are associated with the Indonesian economy which needs to be improved, therefore Government could increase through improved and increased banks performance by increasing the national income, where the banking, especially commercial banks at the core of the financial system of State. The method used in this study is multiple linear regression partial adjustment model (Partial Adjustement Model) that is useful to observe the response of short-term and long-term variable from one unit change in the value of independent variables. From the analysis results obtained equation is LSt = β0 + β1LYt + β2 Lrt + β3 LSt-1 + µt. The results showed that the model free from the classical assumption of multicollinearity, heteroscedasticity, autocorrelation. As for all significant independent variables simultaneously on the third party funding variables, this suggests that the third party funding increase is influenced by many factors could be shown the results of the regression is calculated for 679.8788 F <F table at 2.48. And partially variable interest rate not significantly affect the third party funding. Keywords: national income, interest rates, DPK

Perancangan Dan Implementasi Perangkat Lunak Sistem Pencocokan Sidik Jari Dengan Algoritma Filterbank Gabor

From research result used filterbank gabor algorithms, can give 96 (24 x 4) featurres from 24 sector with 4 filter. Gabor filter use 23 x 23 with orientation change 00, 450, 900, dan 1350. Each orientation angle change will be rotation gabor filter on to its. Make feature vector or FingerCode with Avarage Absolute Deviation (AAD) are average value from difference pixels number for each sector and centre value on sector. Error system on disjoint between FAR dan FRR with value 3,6% and threshold value 39. Then slope from GAR graphic value 400, this is proving that this system is running a good, cause slope recommendation value 450

Gamelan Music Onset Detection based on Spectral Features

This research detects onsets of percussive instruments by examining the performance on the sound signals of gamelan instruments as one of  traditional music instruments in Indonesia. Onset plays important role in determining musical rythmic structure, like beat, tempo, measure, and is highly required in many applications of music information retrieval. Four onset detection methods that employ spectral features, such as magnitude, phase, and the combination of both are compared in this paper. They are phase slope (PS), weighted phase deviation (WPD), spectral flux (SF), and rectified complex domain (RCD). Features are extracted by representing the sound signals into time-frequency domain using overlapped Short-time Fourier Transform (STFT) and by varying the window length. Onset detection functions are processed through peak-picking using dynamic threshold. The results showed that by using suitable window length and parameter setting of dynamic threshold, F-measure which is greater than 0.80 can be obtained for certain methods

Spectral-based Features Ranking for Gamelan Instruments Identification using Filter Techniques

 In this paper, we describe an approach of spectral-based features ranking for Javanese gamelan instruments identification using filter techniques. The model extracted spectral-based features set of the signal using Short Time Fourier Transform (STFT). The rank of the features was determined using the five algorithms; namely ReliefF, Chi-Squared, Information Gain, Gain Ratio, and Symmetric Uncertainty. Then, we tested the ranked features by cross validation using Support Vector Machine (SVM). The experiment showed that Gain Ratio algorithm gave the best result, it yielded accuracy of 98.93%

Laporan Kasus: Manifestasi Oral Penderita Hipertensi berupa Ginggival Enlargement

Hypertension presents an increase in blood pressure following the oral manifestations, such as gingival enlargement. A 42-year-old woman came to the General Sudirman University Dental and Oral Hospital complaining of enlarged front gums seven years ago. The patient had a history of hypertension and regularly consumed drugs, amlodipine 5 mg. Extraoral examination revealed no lymphadenopathy and no swelling of the head and neck area. Intraoral examination revealed a gingival enlargement involving the papilla to the gingival margin present on the entire upper and lower labial gingival surface. The patient's diagnosis was gingival enlargement caused by gingival enlargement due to the use of amlodipine. Gingival enlargement has been noted with long-term or high-dose amlodipine use. The mechanism of amlodipine in causing gingival enlargement is through the role of fibroblasts with abnormal susceptibility to the drug, resulting in increased levels of protein synthesis, especially collagen. The role of pro-inflammatory cytokines occurs through an increase in interleukin-1β (IL-1β) and IL-6 in the inflamed gingival tissue due to the gingival fibrogenic response to drugs. Therapies were DHE and scaling and root planning as phase I in periodontal treatment. Plaque elimination is vital to reduce gingival inflammation that may occur. Substitution of the drug amlodipine may be needed if there is no improvement. Based on case reports, hypertension patients who took amlodipine could have gingival enlargement. The therapy given was plaque elimination in the form of DHE and Scaling and regular check-ups with the dentist

Design and development of a slot-less permanent magnet linear motor using permeance analysis method for spray application

Mostly in industrial spray applications pneumatic systems are utilized for operating the automatic spray gun. Linear motor can be one of the alternatives for triggering the spray gun instead of pneumatic systems due to its accuracy in valve positioning according to the required flow rate. From this point of view a tubular linear permanent magnet motor has been designed using Permeance Analysis Method (PAM) and developed. Three permeance models have been developed for PAM analysis. Among these three models, only one model is selected as a PAM model which can be produced the required amount of thrust for triggering the spray gun. After selecting the PAM thrust model, the size of the motor has been optimized by analyzing the effect of thrust constant, electrical and mechanical time constant. Finally based on the optimized data, the motor has been fabricated and tested that shows the good argument with the analysis result

Sintesis Bahan M-Hexaferrites Dengan Doping Logam Co Menggunakan FTIR

Has successfully carried out the study synthesis of materials M-heksaferit with doping metal Co using FTIR. The study was conducted to see the phase that forms on M-hexaferrites material by adding a transition metal element cobalt (Co) with the mole fraction x 0, 0.2, 0.5, 0.8, 1.0 done drying with T 80°C for 2 hours and calcined the T 400, 600, 800°C for 4 hours. Barium M-hexaferrites BaFe12O19 characterized using Fourier transform infrared spectroscopy (FTIR), the picture looks FTIR results for the mole fraction x 0.2, 0.5, 0.8 and 1.0 located on T 8000C