公开(公告)号：US20160066346A1

公开(公告)日：2016-03-03

申请号：US14832811

申请日：2015-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Amar Prakash AZAD ,  Sujit JOS ,  Sandhya PATIL ,  Kannan GOVINDAN ,  Kiran BYNAM ,  Manoj CHOUDHARY ,  Taeseok KIM ,  Youngsoo KIM

IPC: H04W74/08 ,  H04W48/10 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W48/10 ,  H04W84/12

Abstract: A method and apparatus for a collision-free carrier sense multiple access (CSMA) are provided. The method of a node associated with a beacon enabled carrier sense multiple access (CSMA)-based wireless communication network through an access point (AP) includes receiving a beacon from the AP, the beacon comprising a back-off prime number and a beacon random number, and generating a back-off interval based on the beacon random number, the back-off prime number, a mapped identification (ID) of the node, and a current time slot of a frame of the beacon. The method and apparatus provide a collision-free CSMA scheme for a beacon enabled CSMA-based wireless communication network. In the collision-free CSMA scheme, uniformly distributed back-off intervals may be generated in a distributed fashion at each node for a CSMA-based wireless communication network. The back-off intervals may be correlated among the nodes even though the nodes do not communicate with each other.

Abstract translation: 提供了一种用于无碰撞载波侦听多路访问（CSMA）的方法和装置。 与通过接入点（AP）的基于载波侦听多路访问（CSMA）的无线通信网络相关联的节点的方法包括从AP接收信标，所述信标包括退避素数和信标随机 并且基于信标随机数，退避素数，节点的映射标识（ID）和信标的帧的当前时隙来生成回退间隔。 该方法和装置为基于信标的基于CSMA的无线通信网络提供无冲突的CSMA方案。 在无冲突的CSMA方案中，可以以分布式方式在每个节点处为基于CSMA的无线通信网络生成均匀分布的退避间隔。 即使节点彼此不通信，回退间隔可以在节点之间相关联。