Moving to lower-poverty neighborhoods offers broad benefits for children with asthma, regardless of sex or other baseline characteristics by Torie L. Grant, MD, MHS, Laken C. Roberts Lavigne, PhD, MPH, Craig Evan Pollack, MD, MHS, Pete Cimbolic, BA, Susan Balcer-Whaley, MPH, Roger D. Peng, PhD, Elizabeth C. Matsui, MD, MHS, Corinne A. Keet, MD, PhD

Get full text

SPORCULARIN ÖFKE İFADE TARZLARI by Hayri Demir, Turan Sezan, Havva Demirel, Yahya Gökhan Yalçın, Mehmet Altın

Get full text

HFEM公钥密码方案的设计与实现 by 赵永哲, 赵博, 裴士辉, 姜占华

Get full text

PAPR optimization based on SLM and PTS algorithms in NC-OFDM systems by Jie ZHOU, Bernardo Esono Esono Mikue, Xueying WANG, Huiting ZHOU, Hong LUO

Subjects: “…NC-OFDM…”
Get full text

新的MIMO-OFDM系统盲频偏估计算法 by 巩晓群, 赵春明, 华惊宇, 周鹏

Get full text

İlhanlı Döneminde Önemli Bir Merkez: Sugurluk (Taht-i Süleyman) by Özkan Dayı

“…İlhanlı tarihini ilgilendiren önemli kararların alındığı bir yer olarak çok da bilinmeyen Sugurluk, bir yazlık yerleşke olmanın ötesinde İlhanlılar zamanında önemli bir siyasi mekân durumuna da yükselmiştir. …”
Get full text

Improved and efficient EM channel estimation algorithm for MIMO-OFDM systems by XU Peng1, WANG Jin-kuan1, QI Feng2

Subjects: Get full text

QAM-OFDM卫星通信系统PAPR抑制方法研究 by 张琛, 付耀文, 张尔扬

Get full text

Joint channel and impulsive noise estimation method for MIMO-OFDM systems by Xinrong LYU, Youming LI, Qiang GUO

Subjects: Get full text

Secure OFDM transmission scheme based on two-stage chaos mapping by Ying WANG, Xiao-zhong ZHANG, Juan ZENG, Yong-ming WANG

Subjects: Get full text

基于四维混沌系统的OFDM同步算法 by 唐良瑞, 左琪, 崔维新

Get full text

Error performance of CE-OFDM based AF systems with relay selection by Tao JIANG, Guangqiu LI, Jianhui CAI

“…Constant envelope (CE) orthogonal frequency division multiplexing (OFDM) can develop the advantages of OFDM,and eliminate the shortcomings of high peak-to-average power ratio (PAPR) and sensitivity to non-linear distortion of power amplifiers.The error performance of OFDM based amplify-and-forward (AF) cooperative system with relay selection will be deteriorated due to feedback delay and other factors.Minimum mean square error (MMSE) Wiener channel predictor can alleviate the deterioration of error performance of wireless systems caused by feedback delay.For this reason,the CE-OFDM based AF cooperative system with relay selection and MMSE channel prediction which can overcome the shortcomings of OFDM and the influence of feedback delay was proposed,and its lower bound expressions for the average bit error rate (ABER) of rectangular quadrature amplitude modulation over Rayleigh block fading channels were derived.The numerical calculation and simulation results show that the lower bound expressions for the ABER of the above system has high accuracy when the modulation coefficients are small and can be used to design the AF cooperative system with CE-OFDM,channel prediction,and relay selection.…”
Get full text

AM/OFDM混合光传输系统误码特性 by 罗钦骑, 容太平, 黄铁侠

Get full text

Spatial subchannel allocation algorithm based on multiuser MIMO/OFDM systems by LU Xiao-feng, ZHU Guang-xi, WU Ren-yong, LIU Gan

Subjects: Get full text

Bankaların Finansal Performans ve Borç Ödeme Gücü Açısından Değerlendirilmesi by Emrah Öget

Subjects: Get full text

Resource allocation scheme in two-way multi-relay OFDM system by Xuan-wei LIANG, Qi ZHU, Guang-jun LIANG

Subjects: “…OFDM…”
Get full text

Estimation scheme for parameters of wireless channel model in OFDM communication systems by WANG Yong, GE Jian-hua, WU Xiao-li

Subjects: Get full text

多带OFDM-UWB系统的抗干扰研究 by 张士兵, 张力军, 徐晨

Get full text

Efficient PAPR reduction algorithm in OFDM based on nonlinear piecewise companding by Zhitong XING, Yun LI, Deyi PENG, Bensi ZHANG, Kaiming LIU, Yuan’an LIU

Subjects: “…OFDM…”
Get full text

基于OFDM系统的差分空频时编码 by 卢小峰, 朱光喜, 韦耿

Get full text