Fa-tang Chen

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In order to solve the problem that the traditional Modulation and Coding Scheme (MCS) selecting rule improves the performance limitedly, this paper introduces a novel MCS selection criterion for the LTE system supporting an adaptive-modulation and coding (AMC) scheme. The proposed criterion uses the sum of the weighted SNRs to determine the appropriate MCS(More)
To meet 3GPP, the latest release of LTE Release 9 Standard, this paper designs and simulates the random access procedure of Network side protocol stack in LTE system. Firstly, this paper introduces the initial events of the random access procedure, and describes contention and non-contention outlines based on the random access procedure. Then, we(More)
In order to estimate frequency offset accurately in the process of downlink synchronization, a new fraction frequency offset estimation algorithm is derived for TD-LTE system. The proposed algorithm utilized the time-domain symmetry character of primary synchronization signal (PSS) to estimate normalized fraction frequency offset. Compared to the(More)
This paper discussed the interference between 3G LTE random access preamble and the SRS (Sounding Reference Signal) via multi-UE link-level simulations, analyzed the performance changes of two types of signal under the influence of interference and found out the factors which leading these changes, then we summarized the way of reducing the interference.
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