Eun Cheol Kim

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In this paper, we analyze and simulate a successive interference cancellation (SIC) scheme for cooperative communication systems in wireless communication network. In the interference cancellation strategy, co-channel interference (CCI) is mitigated by zero forcing (ZF) or minimum mean square error (MMSE) receivers. Moreover, successive interference(More)
— In this paper, we propose and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. In order to enhance performance on frame synchronization and frequency offset compensation, we add a ternary sequence to OFDM(More)
In this paper, the performance of double binary turbo coded ultra wide band (UWB) system with antenna diversity is analyzed and simulated in an indoor wireless channel. We consider pulse position modulation-time hopping (PPM-TH) UWB system. In double binary turbo code, there are two inputs, A and B. The encoder is fed by blocks of k bits or N couples (N = k(More)
In this paper, we propose a novel frame synchronization algorithm for an orthogonal frequency division multiplexing (OFDM) system in multi-user environments. In order to enhance the synchronization performance, we add a repeated orthgonal Gold sequence (ROGS) directly to OFDM signals in the time domain. The power level of a ROGS needs to be low engough in(More)
In this paper, a robust timing jitter control method is proposed and analyzed for network synchronization. In order to reduce timing jitter which exists in delays between a master and slave, following delay is estimated by using previous one. Then, these estimated ones are not according to exact ones which do not include jitter. But timing jitter can be(More)