公开(公告)号：US20100272196A1

公开(公告)日：2010-10-28

申请号：US12431246

申请日：2009-04-28

Applicant: Mohammad M. Mansour ,  Sundeep Rangan ,  Siddharth Ray ,  Vincent Loncke ,  Pramod K.A. Rao ,  Joshua L. Koslov

Inventor： Mohammad M. Mansour ,  Sundeep Rangan ,  Siddharth Ray ,  Vincent Loncke ,  Pramod K.A. Rao ,  Joshua L. Koslov

IPC: H04L27/28 ,  H04L27/06

CPC classification number: H04L27/2695 ,  H04L5/0085 ,  H04L25/0228 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

Abstract: Channel estimates respectively associated with OFDM pilot symbols are used to estimate additional parameters such as change in channel phase over time, change in channel phase over frequency, and frequency selectivity.

Abstract translation: 分别与OFDM导频符号相关联的信道估计用于估计附加参数，例如随时间的信道相位的变化，信道相位频率的变化和频率选择性。

公开(公告)号：US20080080868A1

公开(公告)日：2008-04-03

申请号：US11540975

申请日：2006-09-29

Applicant: Siddharth Ray ,  Muriel Medard ,  Lizhong Zheng

Inventor： Siddharth Ray ,  Muriel Medard ,  Lizhong Zheng

IPC: H04B10/00

CPC classification number: H04B10/25754

Abstract: A FAWNA that allows high-speed mobile connectivity by leveraging the speed of optical networks. Specifically, SIMO FAWNA, which comprises a SIMO wireless channel interfaced with a fiber channel through wireless-to-optical interfaces. Received wireless signal at each interface are sampled and quantized prior to transmission. The capacity of the FAWNA approaches the capacity of the architecture exponentially with fiber capacity. It is also shown that for a given fiber capacity, there is an optimal method of operating wireless bandwidth and number of interfaces. An optimal method to divide the fiber capacity among the interfaces is shown, which ensures that each interface is allocated a rate so that noise is dominated by front end noise rather than by quantization distortion. A method is also presented in which, rather than dynamically changing rate allocation based on channel state, a less complex, fixed rate allocation may be adopted with very small loss in performance.

Abstract translation: FAWNA通过利用光网络的速度来实现高速移动连接。 具体来说，SIMO FAWNA包括通过无线到光学接口与光纤通道接口的SIMO无线信道。 在每个接口处的接收到的无线信号在传输之前被采样和量化。 FAWNA的容量以光纤容量指数地接近架构容量。 还表明，对于给定的光纤容量，存在操作无线带宽和接口数量的最佳方法。 示出了在接口之间划分光纤容量的最佳方法，其确保每个接口被分配速率，使得噪声以前端噪声为主，而不是通过量化失真。 还提出了一种方法，其中，不是基于信道状态动态地改变速率分配，而是可以采用较不复杂的固定速率分配，而性能损失非常小。