OFDM
Multiple Antennas
Cognitive Radio
Relay
CDMA
Synchronization
Channel Estimation
Spectrum Sharing
Interference Cancellation
Full duplex
Spectrum Sensing
Resource Allocation
Neural Networks
Stochastic Geometry
Equalizer
Bi-Directional
Feedback
Femtocell
Energy Harvesting
Heterogeneous Networks
Device-to-Device (D2D)
Cross-link interference
Cell Search
Idle cells
NOMA
HetNet
Ultra-dense small cell networks
Spectral efficiency
FBMC
SINR mismatch problem
Dynamic TDD
interference management
Sub-band filtering
Mobility
eigen decomposition
outage probability
Railway
selection diversity
Handoff
Asynchronous Transmission
flexible duplex
5G
achievable sum rate
interference mitigation
Preamble
Deep learning
Grant-free Transmission
MLP
in-band full-duplex system
sensing duration
Correlated MIMO
Simultaneous Sensing and Transmission
transmission capacity (TC)
Two-way communications
Filtered OFDM
automatic repeat request (ARQ)
UWB
full-duplex cellular
OQAM
bursty traffic model
mode selection
Bi-directional full-duplex
Heterogeneous channel estimation capability
Cognitive relay networks
Channel estimation error
multi-spectral
pilot signal
resource size control
interference to noise ratio
link reliability
Coexistence scenarios
mixed numerology
Cooperative systems
Resource management
LTE-based V2V
Vehicle-to-vehicle communication
CP-OFDM
massive connectivity
tabu-search
full-spreading NOMA
Singular Vale Decomposition
prototype filter
Vehicle-to-Vehicle
Reliability
C-V2V
Intentional frequency offset (IFO)
Degree of freedom (DoF)
B5G
Asynchronism
Asynchronous non-orthogonal multiple access (NOMA)
TDD configuration
Computation offloading
Multiple access
6G
non-orthogonal multiple access
Complexity
Full-duplex
Edge computing
Cell-free
Coexisting network
HST
-
2023.09 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Sungmook Lim, Gosan Noh, Jihaeng Heo, Hyungjong Kim and Daesik Hong,"OFDMA with Variable Tone Spaces", IEEE Wireless Comm. Magazine, Dec. 2012
[IEEE Wireless Commun. Mag.]
조회 39739
Status : | Published |
---|---|
Date : | 2012-12 |
Title : | OFDMA with Variable Tone Spaces |
Authors : | Sungmook Lim, Gosan Noh, Jihaeng Heo, Hyungjong Kim and Daesik Hong |
Journal : | IEEE Wireless Comm. Magazine |
Abstract : | Next generation wireless networks such as 3GPP long term evolution - advanced (LTE-A) demand enhanced system capacity for high quality multimedia services. Carrier aggregation (CA) based on orthogonal frequency division multiple access (OFDMA) has been introduced to achieve this. In CA, each component carrier can be located on a different frequency band and each user utilizing it moves at a different speed. This results in different channel characteristics for each user. Enhancing the system capacity in this environment requires a multiple access scheme that considers different channel characteristics among users. However, conventional OFDMA using fixed tone space (called OFDMAFTS)does not consider user-specific channel characteristics, resulting in capacity degradation. In this article, we propose a new OFDMA system with variable tone spaces (OFDMA-VTS) as an approach to enhancing the system capacity. OFDMA-VTS selects the tone space suitable for each user by considering user-specific channel characteristics in CA. When inter-symbol interference (ISI) is dominant due to a long delay spread, the small tone space is selected to eliminate severe ISI. Conversely, when inter-carrier interference (ICI) due to a large Doppler spread severely degrades the system performance, the large tone space is selected to compensate ICI. In the proposed OFDMA-VTS, each user adaptively selects the optimal tone space needed to minimize the total interference of ISI and ICI, therefore enhancing the system capacity. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...er=6393526 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...ff5b9ba7bb |
Lim, S.; Noh, G.; Heo, J.; Kim, H.; Hong, D.; , "OFDMA with variable tone
spaces," Wireless Communications, IEEE , vol.19, no.6, pp.113-120,
December 2012
doi: 10.1109/MWC.2012.6393526
keywords: {Bandwidth;Bit error
rate;Delay;Doppler effect;OFDM;Synchronization;Transmitters;}
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6393526&isnumber=6393507
-
2023.09 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
-
2023.09 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
카테고리
- 전체(171)
- [IEEE J. Sel. Areas Commun.] (1)
- [IEEE Commun. Mag.] (2)
- [IEEE Trans. Commun.] (7)
- [IEEE Commun. Lett.] (16)
- [IEEE Trans. Wireless Commun.] (47)
- [IEEE Wireless Commun. Mag.] (1)
- [IEEE Wireless Commun. Lett.] (4)
- [IEEE Trans. Veh. Technol.] (29)
- [IEEE Trans. Signal Process.] (1)
- [IEEE Trans. Broadcast.] (1)
- [IEEE Trans. Magn.] (8)
- [IEEE Trans. Neural Netw.] (3)
- [IEEE Trans. Ind. Electron.] (1)
- [IEEE Trans. Consum. Electron.] (1)
- [IEEE Signal Process. Lett.] (9)
- [Electron. Lett.] (5)
- [IEICE Trans. Commun.] (14)
- [IEICE Trans. Fund.] (1)
- [Neuro Computing] (1)
- [Optical Engineering] (2)
- [IEEE Comm. Surveys & Turotials] (3)
- [IEEE Access] (5)
- [Other Journals] (9)