A Performance Summary of the Evolved 3G (E-UTRA) for Voice Over Internet and Best Effort Traffic

Rinne, M.; Kuusela, Markku; Tuomaala, E.; Kinnunen, Pasi; Kovács, István Z.; Pajukoski, Kari; Ojala, Jussi

doi:10.1109/tvt.2009.2014457

Cited by 33 publications

(17 citation statements)

References 16 publications

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“…SC-FDMA, a special case of "linearly precoded" orthogonal frequency division multiple access (OFDMA), has relatively lower peak-to-average power ratio (PAPR) than OFDMA due to the precoding [2]- [4]. However, for the localized FDMA (LFDMA) adopted by the SC-FDMA system in LTE uplink, the PAPR is still large and even larger for higher order modulations [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction of SC-FDMA Signals Via Probabilistic Pulse Shaping

Ren

Zhang

2015

IEEE Trans. Veh. Technol.

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To avoid the excess bandwidth and noise enhancement penalty involved in the pulse shaping method for peak-toaverage power ratio (PAPR) reduction of single carrier frequency division multiple access (SC-FDMA) signals, we propose a novel alternative method, called probabilistic pulse shaping. A set of weighting windows with zero excess bandwidth is designed to weight the outputs of the discrete Fourier transform (DFT) precoder of a block of SC-FDMA symbols in a slot. Then the candidate signal blocks with different weighting windows for each block are generated with the designed low-complexity implementation scheme and the one with the lowest PAPR is selected to be transmitted. At the receiver, the received data can be detected in the same way as that of the conventional SC-FDMA using the defined equivalent channel without side information. It is shown by simulations that the proposed method achieves considerable improvements over the conventional SC-FDMA system in terms of both PAPR and bit error rate (BER) performance with low additional complexity.Index Terms-Peak-to-average power ratio (PAPR), pulse shaping, single carrier frequency division multiple access (SC-FDMA), discrete Fourier transform (DFT) precoder.

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Section: Introductionmentioning

confidence: 99%

PAPR Reduction of SC-FDMA Signals Via Probabilistic Pulse Shaping

Ren

Zhang

2015

IEEE Trans. Veh. Technol.

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“…Block and block-interleaved allocation schemes have been suggested [1], [4], [5]. However, the current trend in the industry, as reflected in the 3GPP LTE documents, is more towards block allocation, where a block of contiguous subcarriers are allocated to each user.…”

Section: Introductionmentioning

confidence: 99%

Complexity and Performance Comparison of Filter Bank Multicarrier and OFDM in Uplink of Multicarrier Multiple Access Networks

Saeedi-Sourck

Bergmans

et al. 2011

IEEE Trans. Signal Process.

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Abstract-We compare filter bank multicarrier (FBMC) and orthogonal frequency-division multiplexing (OFDM) in the uplink of a multiple access network. Our study reveals that the high sensitivity of OFDM to carrier frequency offset (CFO) among different users and the need for interference cancellation methods to reduce this sensitivity leads to very complex and yet not very high performance systems. In FBMC-based networks, on the other hand, near-perfect performance is achieved without any need for interference cancellation, thanks to the excellent frequency localized filters used in the realization of FBMC systems.Index Terms-Carrier frequency offset (CFO), computational complexity, filter bank multicarrier (FBMC), offset quadrature amplitude modulation (OQAM), orthogonal frequency division multiple access (OFDMA).

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“…11. The tabulated spectral efficiencies are given both for the cell mean (CM) and for the cell edge (CE) [21]. The CM spectral efficiency is the average user throughput divided with the system bandwidth, multiplied with the number of served users per cell.…”

Section: Spectral Efficiency and Capacity Analysismentioning

confidence: 99%