Results 1 to 10 of about 32,936 (311)
Improved Pilot-Aided Channel Estimation for MIMO-OFDM Fading Channels
International Journal of Antennas and Propagation, 2013 An improved pilot-aided channel estimation scheme is proposed to enhance the channel estimation accuracy of multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM) fading channels. Based on the adaptive path number selection
J. Mar, Chi-Cheng Kuo, M. B. Basnet
doaj +1 more source
Space-Time Turbo Trellis Coded Modulation for Wireless Data Communications
EURASIP Journal on Advances in Signal Processing, 2002 This paper presents the design of space-time turbo trellis coded modulation (ST turbo TCM) for improving the bandwidth efficiency and the reliability of future wireless data networks.
Welly Firmanto +3 more
doaj +1 more source
New spectrum sensing method under time-variant flat fading channels
Tongxin xuebao, 2014 A dynamic state-space model (DSM) was presented for the problem of spectrum sensing under time-variant flat fading channels (TVFF).The primary user (PU) state and the fading channel were characterized as hidden states.On this basis,a novel method was ...
Meng-wei SUN +4 more
doaj +2 more sources
Entropy, 2017 In this overview paper, we introduce an application of stochastic orders in wireless communications. In particular, we show how to use stochastic orders to investigate the ergodic capacity results for fast fading Gaussian memoryless multiuser channels ...
Pin-Hsun Lin, Eduard A. Jorswieck
doaj +1 more source
Applied Sciences, 2021 Given the mutual information of finite-alphabet inputs cannot be calculated concisely and accurately over fading channels, this paper proposes a new method to calculate the mutual information.
Yuyu Liu, Jinbao Zhang, Dan Zhang
doaj +1 more source
Nondata-aided error vector magnitude performance analysis over κ−μ shadowed fading channel
Tongxin xuebao, 2018 The performance prediction of wireless system over κ−μ shadowed fading channels was a challenging problem of wireless communications,which affects transmission scheme design seriously.To solve this problem,a novel method of quantifying the κ−μ shadowed ...
Fan YANG +6 more
doaj +2 more sources
IEEE Access, 2019 In this study, analytical expressions are derived by using probability density function approach over millimeter wave fluctuating two-ray (FTR) fading channels for average symbol error rate (ASER) of rectangular quadrature amplitude modulation (RQAM) and
Mehmet Bilim, Nuri Kapucu
doaj +1 more source
On the effect of channel fading on greedy scheduling [PDF]
2012 Proceedings IEEE INFOCOM, 2012 Greedy Maximal Scheduling (GMS) is an attractive low-complexity scheme for scheduling in wireless networks. Recent work has characterized its throughput for the case when there is no fading/channel variations. This paper aims to understand the effect of channel variations on the relative throughput performance of GMS vis-a-vis that of an optimal ...
Aneesh Reddy +2 more
openaire +2 more sources
Exploiting Transmit Buffer Information at the Receiver in Block-Fading Channels
EURASIP Journal on Advances in Signal Processing, 2008 It is well known that channel state information at the transmitter (CSIT) leads to higher throughput in fading channels. We motivate the use of transmit buffer information at receiver (TBIR).
Dinesh Rajan
doaj +1 more source
On Backoff in Fading Wireless Channels [PDF]
, 2008 We consider the impact of transmission errors on the backoff algorithm behavior in the IEEE 802.11 protocol. Specifically, since the backoff algorithm assumes that all packet losses are due to collisions, it unnecessarily backs off when a packet is lost due to a transmission error.
Seon-Yeong Han, Nael B. Abu-Ghazaleh
openaire +1 more source