On 3G LTE Terminal Implementation - Standard, Algorithms, Complexities and Challenges

Comprehensive Survey of Possible Security Issues on 4G Networks

“…Among these steps five step involved non secure traffic and two other two steps involved secure traffic exchange based on the device authentication standards of Wi-max [6].…”

Parallel low-complexity MIMO detection algorithm using QR decomposition and Alamouti space-time code

“…The main motivation behind this choice is that these two cases represent the strongest possible candidates for future implementations of 4G standards. For instance, the recently ratified 4G Long Term Evolution (LTE) standard, which is part of the 3rd Generation Partnership Project (3GPP), now supports the 4x4 case as an option [8] while the advanced version, called LTE-advanced (not ratified yet), is moving towards incorporating the 8x8 case in order to meet a target peak bandwidth efficiency of 30 bit/s/Hz [52].…”

“…Let us assume that our base permutation is (1,2,3,4,5,6,7,8 When we only need to perform two QR decompositions, i.e. N gr =2, the second permutation that should be chosen is (7,8,5,6,3,4,1,2).…”

“…Figure 4.8 shows the results for the 4x4 system while 7 In fact the size of a time slot in IS-136 is 162 symbols, 32 symbols of which are used for synchronization and channel estimation purposes For the 4x4 case, the effect of simple ordering provided by SUBOPT2 is a gain of 1.2dB SNR at 1% FER. Optimum ordering (OPT), which is also equivalent to suboptimum ordering SUBOPT1 in this special case 8 , provides a gain of 1.9dB SNR at the same FER. Because the sharpness of the curves with ordering increases with increasing SNR, we may erroneously conclude that ordering provides diversity For the 8x8 case the effect of the simple ordering provided by SUBOPT2 is 1.2dB…”

FPGA Implementation of Video Transmission System Based on LTE

“…Reference [5] shows the simulation of physical link. Reference [6] mentions the implementation of hardware platform for LTE baseband link, but doesn't refer to the design of protocol stack.…”