4G: LTE/LTE-Advanced for Mobile Broadband
Citations
6 citations
Cites background from "4G: LTE/LTE-Advanced for Mobile Bro..."
...PROVIDING high data rates to users located at the boundaries between cellular coverage areas constitutes a major concern in the current 4G system [1] and the emerging 5G networks [2]....
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6 citations
Cites background from "4G: LTE/LTE-Advanced for Mobile Bro..."
...3, which corresponds to 10log N = −5dB [3]....
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...1λ; as they use an exclusive set of Nh preambles and deploy a contention-free random access procedure [3], [13], they will not collide with new call requests in the first handshake step....
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...In case of a new call, random access requires that the UE undergoes the four step handshake [3] on PRACH, which is one of the several physical channels used in LTE/LTE-A cells....
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...SINR is usually expressed as the ratio of bit energy and spectral density of noise power, Eb N0 ; in case of preamble detection, SINR threshold is expressed as ratio of the energy of the entire preamble sequence and spectral density of noise power, Ep N0 [13], [3]....
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...Random access in Long Term Evolution/Long Term Evolution-Advanced (LTE/LTE-A) cells is necessary in a number of scenarios, in particular for initial access by a terminal (User Equipment or UE) that is not yet connected [3], [13]....
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6 citations
Cites background from "4G: LTE/LTE-Advanced for Mobile Bro..."
...At the present time GSM/Edge systems provide a bandwidth of 384 Kbps which increases to 2 Mbps for UMTS/DECT systems....
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...PERFORMANCE EVALUATION MoCCA is a GSM based cloud whose performance we evaluate here but it can act as a reference when cloud architectures based on 3G and 4G networks that support application bandwidths in excess of 20 Mbps are evaluated....
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...Emerging 4 G systems such as LTE are planned to have downlink bandwidth of 84 – 168 Mbps [24]....
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6 citations
Cites background or methods from "4G: LTE/LTE-Advanced for Mobile Bro..."
...Each subcarrier is modulated at low symbol rate with conventional modulation scheme, like QPSK, 16QAM or 64QAM [6]....
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...Single Carrier Frequency Division Multiple Access (SC-FDMA) was chosen to be the LTE uplink transmission scheme from mobile terminals to eNB [6]....
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...10 changing the uplink transmission scheme was due to problems in transmission power that OFDMA causes to mobile terminals [6]....
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...The high PAPR of OFDMA requires linear power amplifiers to avoid inordinate intermodulation twist....
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...The OFDMA signal introduces very pronounced envelope fluctuations which lead to a high Peak-to-Average Power Ratio (PAPR) [6, 7]....
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5 citations
Cites background from "4G: LTE/LTE-Advanced for Mobile Bro..."
...“3G” (Shimoe and Sano, 2012) and “4G” (Dahlman et al., 2011) broadband packetswitched networks, and the widespread technologically enhanced terminals (smartphones, tablets, etc....
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...Today, last (third and fourth) generation cellular networks, i.e. “3G” (Shimoe and Sano, 2012) and “4G” (Dahlman et al., 2011) broadband packetswitched networks, and the widespread technologically enhanced terminals (smartphones, tablets, etc.) allow the development of a wide range of broadband…...
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...3G networks and the more advanced 4G network, also known as Long Term Evolution (LTE) network (Dahlman et al., 2011), can perform high-quality 3D video streaming....
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