Sonom Olonbayar

Sonom Olonbayar
IHP | Institute for High Performance Microelectronics · System

PhD

About

28
Publications
2,436
Reads
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105
Citations
Additional affiliations
February 2008 - December 2010
Brandenburg University of Technology Cottbus - Senftenberg
Position
  • Contract lecturer
Description
  • Graduate and undergraduate courses lectured: Telecommunication systems, Signal transmisson engineering
February 2007 - present
IHP
Position
  • Researcher
Description
  • Design and implementation of wireless IR-UWB, baseband signal processing, simuation, VHDL coding and testing, ASIC design
September 2002 - May 2006
Technische Universität Hamburg
Position
  • PhD Student
Description
  • My PhD research concentrated on OFDM transmission techniques under the supervision of Prof. Rohling. The main focus was on channel estimation, resource allocation and multiple access techniques.

Publications

Publications (28)
Article
An in-depth treatment of impulse an radio ultra-wideband (IR-UWB) wireless system is provided reviewing theoretical background, proceeding with detailed implementation procedure, and finally giving simulation and test results. This is the first research and prototyping work to be published in the field of IR-UWB that operates in the 6–8 GHz band. T...
Conference Paper
Full-text available
Detection performance of Impulse Radio Ultra wideband IR-UWB wireless communication was evaluated in noisy and dispersive channel environment. A polarity reception method was introduced which sets reference phase and does phase detection in relation to it. Simulation results confirm that the adopted detection scheme can achieve a packet error rate...
Article
This paper describes a monolithic integrated single-chip transceiver intended for impulse radio (IR)-Ultra-wide Band (UWB) applications compliant to the IEEE 802.15.4a standard. The transceiver operates in the higher UWB band on four different channels, which fit into the European spectral mask (defined by the ECC). In accordance to the standard, s...
Article
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Regarding these qualities, it is comprehensible that there is an interest in the automation industry to use ultra wideband based wireless sensor nodes to replace wired systems, to save energy and to sav...
Conference Paper
Full-text available
A digital baseband was designed and implemented according to the standard IEEE802.15.4a both in FPGA and as well as ASIC. The baseband supports data rates 850 Kb/s, 6.81 Mb/s and 27.24 Mb/s running at the clock speed of 31.2 MHz. The transmitter and receiver were tested by introducing various distortions to the signal being received. The baseband w...
Conference Paper
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Regarding these qualities, it is comprehensible that automation industry's interest to use ultra wideband based on wireless sensor nodes increases. Those shall replace wired systems in order to save ene...
Conference Paper
Full-text available
Design, simulation, implementation and performance of IR-UWB baseband conforming to IEEE802.15.4a are discussed. The baseband can support various data rates such as 850 Kb/s, 6.81 Mb/s and 27.24 Mb/s. The design and parameter selection were considered carefully taking into account all possible imperfections that IR-UWB high frequency signal can exp...
Conference Paper
This paper presents a monolithically integrated ultra wideband direct up conversion transmitter designed in accordance with IEEE 802.15.4a standard. The transmitter operates in the higher UWB band in eight communication channels. It supports the burst position and the binary phase-shift keying modulation schemes and provides a modulated impulse seq...
Conference Paper
This paper describes a monolithic integrated single-chip transceiver intended for impulse radio (IR) - Ultra-wide Band (UWB) applications compliant to the IEEE 802.15.4a standard. The transceiver operates in the higher UWB band on the mandatory channel #9 (7.9872 GHz). The implemented nominal data rate is 850 kb/sec. The presented chip consists of...
Conference Paper
Impulse-radio ultra-wideband systems (IR-UWB) provide short-range wireless communication and precise localization simultaneously. Especially non-coherent IR-UWB reduces the system complexity which enables the design of low-power receivers. This paper presents an integrating digitizer which integrates rectified baseband pulses of an IR-UWB signal an...
Conference Paper
Ultra-Wideband Impulse Radio is a promising technology for industrial automation applications due to its inherent multipath robustness and coexistence features. The ultra-wideband impulse radio PHY standardized in IEEE 802.15.4, however, is optimized for low duty cycles and not optimized for real-time communication. Especially the long preambles th...
Conference Paper
Outlier detection is a well studied problem in various fields. The unique challenges of wireless sensor networks such as limited bandwidth, memory, energy, and unreliable communi- cation make this problem especially difficult. Sensors can detect outliers ...
Conference Paper
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Moreover, it is able to offer accurate localization in the range of few centimeters. Regarding these qualities, it is desirable to design an IR-UWB transceiver which consumes as little power as possible...
Conference Paper
Full-text available
One energy efficient way of ASIC implementation for the standard IEEE802.15.4a was considered in greater detail. The main focus was on developing a solution for short range communication based on impulse radio ultra wideband. The ASIC implementation is performed with the 250 nm SiGe technology from IHP, Germany. The current system consists of three...
Article
Full-text available
A 6 bit and a 7 bit successive approximation register (SAR) analog-to-digital converter (ADC) with conversion rates of up to 80 MS/s are presented in this paper. They will be used in an impulse-radio ultra-wideband (IR-UWB) receiver. The architecture with a switched-capacitor (SC) digital-to-analog converter (DAC) is applied due to its low power co...
Article
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Moreover, it is able to offer accurate localization in the range of few centimeters. Considering these qualities, it is desirable to design an IR-UWB transceiver which consumes as small power as possibl...
Article
Using UWB for wireless short range, low rate communication is attracting growing interest due to its low power consumption and very high bandwidth. Moreover, it is able to offer accurate localization in the range of few centimeters. Regarding these qualities, it is desirable to design a IR-UWB transceiver which consumes as few power as possible whe...
Conference Paper
Full-text available
In this paper, we introduce ways to improve the robustness by lowering the packet loss rates of transmissions using ultra-wideband impulse radio (UWB-IR). It has been shown that the packet loss rate caused by erroneous synchronization can be tremendously decreased compared to the preamble specified in the standard IEEE 802.15.4a by our approach. Th...
Article
Full-text available
Impulse Radio Ultra-Wideband (IR-UWB) communication system according to the standard IEEE.802.15.4a supporting non-coherent reception is discussed with the focus on the automatic gain controller (AGC). The performance of the transceiver is evaluated under noisy and common multipath channel environments. Simulation results confirm that a simple non-...
Conference Paper
Using UWB for wireless short range, low rate communication has been attracting growing interest due to its low power consumption and very high bandwidth. Moreover, it is able to offer accurate localization in the range of few centimeters. Recognising these qualities, it is desirable to design IR-UWB transceiver which can draw minimum possible power...
Conference Paper
Ultra Wideband (UWB) has been gaining growing research and industry interests in many different areas of wireless communications. Among them using UWB as a radio interface for wireless sensor network is of high interest due to its precise localisation and low power consuming capabilities. In this paper we carry out quantitative analysis into the sy...
Conference Paper
Ultra-wideband (UWB) has become one of the key technologies in wireless communication industries. In this paper we discuss and evaluate the performance of UWB under different channel conditions when it is applied for wireless sensors. The simulation was carried out for various detection and modulation schemes. Simulation results confirm that UWB wi...
Article
The Orthogonal frequency division multiplexing (OFDM) transmission technique offers a high degree of system flexibility in multiple access schemes if combined with the conventional TDMA, FDMA and CDMA approaches. This is especially of benefit in multi user systems, because future mobile communication networks will require a high degree of flexibili...
Article
Full-text available
A voltage integrator which is followed by a successive approximation register (SAR) analog-to-digital converter (ADC) for an impulse-radio (IR) ultra-wideband (UWB) receiver is presented in this paper. A sequence of wideband impulses carries information in IR-UWB systems which are used for short-range wireless communication and localization. The ra...

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