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TWC
2008
84views more  TWC 2008»
13 years 11 months ago
Performance Analysis of OFDM Systems with Adaptive Sub Carrier Bandwidth
Orthogonal frequency division multiplexing based wireless systems are spectrally efficient, but they are vulnerable to inter carrier interference (ICI). In a wide area scenario, us...
Suvra Sekhar Das, Elisabeth de Carvalho, Ramjee Pr...
BROADNETS
2004
IEEE
14 years 2 months ago
The Effects of the Sub-Carrier Grouping on Multi-Carrier Channel Aware Scheduling
Channel-aware scheduling and link adaptation (LA) methods are widely considered to be crucial for realizing high data rates in wireless networks. Multi-carrier systems that spread...
Fanchun Jin, Gokhan Sahin, Amrinder Arora, Hyeong-...
CORR
2010
Springer
135views Education» more  CORR 2010»
13 years 9 months ago
Modified EESM Based Link Adaptation Algorithm for Multimedia Transmission in Multicarrier Systems
The previous link adaptation algorithms on ofdm based systems use equal modulation order for all sub carrier index within a block. For multimedia transmission using ofdm as the mo...
R. Sandanalakshmi, Athilakshmi, K. Manivannan
ETT
2000
103views Education» more  ETT 2000»
13 years 10 months ago
Analysis of Doppler Spread Perturbations in OFDM(A) Systems
We analyze the effects of Doppler spread in mobile channels on Orthogonal Frequency Division Multiplex (OFDM) systems. This is important, since channel variations during one OFDM s...
Patrick Robertson, Stefan Kaiser