Jung-Yeol Oh

PSSK Modulation Scheme for High-Data Rate Implantable Medical Devices

In this paper, we propose a new modulation scheme for high-data rate wireless body area network inbody communication systems. Simulation results are presented in terms of performance, modulation options, spectrum regrowth by nonlinearity and roll-off values of a pulse shaping filter. In addition, the planning for link budget explains that the proposed modulation approach is appropriate for high-data rate applications in the body channel environment.

Baseband transceiver chip for IR-UWB system

This paper is about the chip for the impulse radio UWB positioning system compliant with IEEE 802.15.4a global standard that not only realizes communication but also ranging function with low cost and low power. The impulse radio UWB positioning baseband chip manufactured through the TSMC 0.13um mixed-signal CMOS process. It has been designed for the direct up-down conversion transceiver. Hence it could apply flexibly to be managed with the changes according to the mutually different UWB frequency channel policy in each country. In the experiment, the chip for ranging performed very precise positioning and tracking of several tens centimeters in the multipath indoor shadowing environment.

Phase rotation shift keying for low power and high performance WBAN in-body systems

In this paper, we propose a new modulation scheme for low power and high performance WBAN in-body communication systems. Simulation results are presented in terms of performance and transmit power. The proposed modulation scheme is more appropriate for high data rate human body applications than other schemes due to the better characteristic of spectral re-growth in the non-linear system environment as well as better performance.

New modulation scheme for high data rate implantable medical devices

This paper proposes a new modulation scheme for high data rate WBAN in-body communication systems. Simulation results are presented in terms of performance, modulation options, spectrum re-growth due to non-linearity and roll-off values of pulse shaping filter. In addition link budget planning explains that the proposed modulation approach is appropriate for high data rate applications in the body channel environment.

A π/4-shifted differential 8PSSK modulation for high data rate WBAN system

This paper proposes a new modulation scheme for high data rate WBAN in-body communication systems. We propose a π/4-shifted differential 8-PSSK scheme that includes its architectures for the transmitter and receiver. Simulation results are presented in terms of performance, modulation options and frequency tolerance.

Performance investigation of high compression data transmission based on group scaling for mobile front-haul

In this paper, we propose a data compression scheme for high-speed optical front-haul links between BBU(Baseband Unit) and RRU (Remote Radio Unit) in the mobile communication system. The proposed method can compress the transmitted data about 4 times while meets the requirement of the specification according to the performance degradation characteristic caused by the compression/ de-compression.