2017 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob)

In this research, we analyzed the audio watermarking system with combining adaptive wavelet with SVD in various BCH Codes and various DWT levels. The perceptual quality, robustness and security of audio parameters: ODG, SNR and BER have been analized with various attacks and DWT levels. Our work analyzed these parameters at quantization spacing of 0.1 for both BCH codes of 15,11,1 and 15,7,2. ODG ... View full abstract»

In this paper, we will apply the regularized channel inversion (RCI) combined with one of the 5G waveform candidates, namely generalized frequency division multiplexing (GFDM), in multiuser MIMO downlink systems. RCI, known as the simplest linear precoding based on MMSE criterion, performs well on previous multiuser MIMO systems using orthogonal frequency division multiplexing (OFDM) in order to r... View full abstract»

Nowadays, the alternative for OFDM that is called as OWDM system have been studied. It replaces Fast Fourier Transformation with Wavelet Transformation. Wavelet transformation has more advantages such as flexibility, low complexity and given low energy consumption. High value of PAPR in OFDM system can decrease performance of system. PAPR is one of important parameter that related with hardware im... View full abstract»

In this paper we present a research testbed for spectrum sensing in cognitive radio systems. We consider spectrum sensing based on Eigen values of sample covariance matrix of the input signal. When considering the hardware implementation of the algorithm, it will pose a question on how to calculate the Eigen values with low complexity. In practice, there is a tradeoff between complexity and detect... View full abstract»

Some instances in other countries are developing satellite constellation for certain needs. Satellite communication needs additional block that is called Inter-Satellite links (ISL). In previous research, circular polarized S-band antennas for inter-satellite link communication has been designed, but the HPBW parameters value that is generated when the antenna is attached to the satellite prototyp... View full abstract»

The prime objective of this research is to create an Android-based mobile application that acts as a liaison between users as the owner of the ornamental plants with the ornamental plants automation system that has been built. This Android-based mobile app helps the users in maintaining ornamental plants remotely. Users can perform monitoring functions such as displaying information to the user ab... View full abstract»

A complex road topology in a large city environment have become one of the most challenging factors in vehicular communications. Besides inevitable overpass and building constructions, road topologies with a nonstraight structure, i.e., curvy- and circle-shaped road topologies, will lead to particular investigations and evaluations. This paper addresses the challenge of a three-dimensional road to... View full abstract»

Vehicular Ad-Hoc Networks (VANET) technology especially Vehicle to Vehicle (V2V) enables vehicles to communicate each other directly. Each vehicle acts as a node and equipped with transceiver to send and receive data. V2V technology requires a reliable and faster communication since it is established in a short distance and time, where simulations often occurs in dynamic conditions. This situation... View full abstract»

The following topics are dealt with: error statistics; OFDM modulation; wavelet transforms; audio watermarking; image coding; watermarking; mobile computing; support vector machines; feature extraction; traffic engineering computing. View full abstract»

DTN have been employed widely to support various applications but among them, vehicle-based DTN on transportation infrastructure to deliver data is promising. In addition to routing protocols, message transmission scheduling is also very influential on DTN performance. Since nodes have a mobility and usually moving, a limited radio range and a limited duration of contact time can involve bottlenec... View full abstract»

We propose an audio watermarking system using LWT-SVD and Arnold transform. This system is compared to DWT based audio watermarking [15]. The results of our experiments show that the systems we designed are robust and imperceptible compared to DWT based system. LWT has zero BER in the resampling attack in the frequency of 88.2 kHz. It also have zero values of BER in all of bit rates when our water... View full abstract»

In recent years, digital image technology has been developing quickly. Supporting by widespread programming software development, the technology has contributed to human activity. One of sciences that elaborate the technology is image processing. This research aimed at designing smart door for face identification based on image processing. The smart door will be a face identification system with b... View full abstract»

Audio watermarking is used as a tool to avoid the illegal manipulation of audio products. In this research, we proposed the audio watermarking system with adaptive BCH code multilevel wavelet method. We use three types of BCH codes: 15,11,1; 15,7,2; and 15,5,3. Our work show that the perceptual quality, robustness and watermark security are varies to the type of BCH codes. At quantization spacing ... View full abstract»

This research designed a three-dimensional (3D) laser scanner using dual laser to scan object placed in a rotating table with maximum dimension is 15 × 15 × 15 cm. Two lasers and one camera are placed and positioned with certain calculation so it can meet the requirements for triangulation technique. From the scanning process, obtained two point clouds which needed to be merged. We p... View full abstract»

In this paper, presented the design of an embedded system that used to controlling nutrients content for hydroponics. The embedded system implanted artificial intelligence using Forward Chaining method to take the conclusion of nutrient condition. Embedded system also help users in measuring parameters needed by plant, calculate nutrient needs and the right conditions of nutrients, and determine t... View full abstract»

Although there are a lot of traffic signs that exist, but oftentimes people disregard it for various reasons, such as not seeing the existence of these signs and do not know the meaning of signs that exist. It has an impact on traffic order. With this problem, in this final assignment will be designed a mobile application based on android that can introduce traffic signs in different ways. Applica... View full abstract»

In this paper, design and implementation the feature extraction method of Speeded-Up Robust Features (SURF) and Support Vector Machine (SVM) classification method into the traffic signs recognition application. The output of this application is the meaning of the traffic sign with two languages, indonesia and english. In the SURF method, the smallest large number of keypoints will affect the accur... View full abstract»

Russian is a language that is widely used by people in the world for various purposes because it is ranked 6th in the world as the language with the most speakers. This is one of the foundations of this study in addition to the high interest of the world population to use and learn the language. Russian language does not use alphabets but uses Cyrillic script, where the font is different from the ... View full abstract»

Demographic information available in Cinunuk Village is still in the form of information of population data presented in the form of irregular area graph picture. For example, to find information of residence of a region still use manual data search system one by one. As time passes then the data will grow more and more, with still use manual search system then will take enough time. Given these p... View full abstract»

The Named-data Link State Routing protocol (NLSR) is an intra-domain routing protocol for Named Data Networking (NDN). It is an application level protocol similar with many IP routing protocols, but NLSR uses NDN's Interest/Data packets to disseminate the routing updates, directly benefit from NDN's built-in data authenticity. The security mechanism has been directly embedded inside the NDN protoc... View full abstract»

In this paper, multi layer parasitic microstrip biquad patch antenna is designed and simulated for WLAN applications at 2.4 GHz ISM band. This antenna is composed by five elements biquad patch 1/4 wavelength with addition of flat reflector. Low cost FR-4 material is used as antenna substrate. The antenna is designed and simulated using Computer Simulation Technology (CST) Microwave Studio software... View full abstract»

In this paper, we investigate the green characteristic of orthogonal frequency-division multiplexing (OFDM) transmissions in terms of range estimation and localization in multipath channels, relative to the pseudo-random noise (PN) transmissions. Based on the analysis of the fundamental bounds in gentle multipath channels, we observe that the required transmit energy for OFDM is proved to be much ... View full abstract»

Integrated antenna for Electro-Optic Modulator has become an applicable solution in Distributed Antenna System (DAS). DAS, also known as In Building Coverage/System (IBC/S), mostly still uses coaxial cable as a transmission medium in the building. This paper proposed to use the electro-optic modulator as Photonic Antenna in DAS. The research has been conducted theoretically based on empirical refe... View full abstract»

In this paper, a positioning system using multicarrier (MC) transmission is proposed and a novel network-managed localization protocol is presented for Worldwide Interoperability for Microwave Access (WiMAX), in which we propose three location methods. A new unified Cramer-Rao lower bound (CRLB) is derived. The best linear unbiased estimator (BLUE) is used to implement positioning and their perfor... View full abstract»