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This paper analyzed the performance of the LTE random access (RA). We describes a RA performance analysis simulator for LTE to support massive number of devices. To evaluate the performance, we developed new modules to simulate LTE's RA procedures because there is a limit when it accommodate massive number of devices in existing LTE module. This paper also represents performance analysis results according...
Recently, the full duplex communication has been spotlighted as one of key technologies of the future wireless local area network (WLAN). The full duplex MAC protocols are actively researched because the feasibility of full duplexing is achieved because of the technology evolution. The full duplex MAC protocols can be categorized as two types. One is centralized type and the other is distributed type...
We evaluate the practical network coding (NC) gain in a wireless ad hoc networks. First, we introduce how network coding can be applied to IEEE 802.11 ad hoc networks. Next, we find obstructive factors by which the NC gain may decrease as compared with the theoretical NC gain. Finally, through the performance evaluation, we analyze why a performance difference occurs between practical and theoretical...
WCDMA commercial service has been started in Korea since 2004. The initial deployment of WCDMA has been done in highly-crowded urban districts. Therefore, on-traffic inter-RAT handover from WCDMA to CDMA2000 and roaming between two systems should be developed to provide the seamless service throughout the whole country. In this paper, we evaluate the performance of inter-RAT handover using dummy-pilot...
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