This paper presents an improved orthogonal frequency-division multiple access (OFDMA)
system design aiming to reduce the power consumption and the hardware complexity of low …

As the key technology of Chinese national digital television terrestrial broadcasting (DTTB)
standard, time domain synchronous OFDM (TDS-OFDM) utilizes known training sequence …

In current OFDMA systems, three major problems arise due to the large number of
subcarriers, including high peak to average power ratio (PAPR), sensitivity to carrier …

Next generation wireless networks such as 3GPP LTE-A demand enhanced system capacity
for high-quality multimedia services. Carrier aggregation based on OFDMA has been …

Recently, orthogonal frequency division multiple access (OFDMA) has been used as a
multiple access method. OFDMA with adaptive modulation can provide superior system …

In current OFDMA systems three major problems arise due to the large number of
subcarriers, including high peak to average power ratio (PAPR), sensitivity to carrier …

The performance of orthogonal frequency division multiplexing interleave division multiple
access (OFDM-IDMA) systems would be severely degraded by the inter-carrier interference …

In this note, we review the design philosophies for uplink and downlink of OFDMA systems
and demonstrate that OFDMA is a superior access technology for broadband wireless data …

Is is widely known that the power consumption of Analog-to-Digital Converters (ADCs) is
strongly related with the number of bits of resolution. Using smaller resolutions can greatly …

The conventional OFDM-based pattern division multiple access (PDMA) systems suffer from
the problem of slow side-lobe attenuation. To alleviate this problem, we propose a new …