专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07792138B2 Distributed opportunistic scheduling in IEEE 802.11 wireless location area networks (WLANs) 有权
标题翻译： IEEE 802.11无线定位区域网络（WLAN）中的分布式机会调度
公开(公告)号：US07792138B2
公开(公告)日：2010-09-07
申请号：US11520541
申请日：2006-09-13
申请人： Seong-il Hahm , Jong-won Lee , Chong-kwon Kim
发明人： Seong-il Hahm , Jong-won Lee , Chong-kwon Kim
IPC分类号： H04J3/02
CPC分类号： H04W74/0825 , H04L1/0003
摘要： A WLAN distributed/opportunistic scheduling (WDOS) method for acquiring a multi-user diversity gain is disclosed. The WDOS method allows a transmitter (i.e., a transmission user) to observe channel conditions of receivers (i.e., reception users), and commands the transmitter to transmit packets to a specific receiver having a relative good channel condition. The WDOS method uses a modified RTS/CTS exchange method to perform the channel probing. If the transmitter broadcasts the BRTS frame, each receiver transmits a CTS frame after the lapse of its backoff period. According to the reception signal strength distribution, the backoff delay time minimizes the number of CTS collisions irrespective of the number of receivers, reduces an amount of channel probing overheads, and maximizes a multi-user diversity gain. The better the relative channel condition, the lower the backoff delay time.
摘要翻译：公开了一种用于获取多用户分集增益的WLAN分布/机会调度（WDOS）方法。 WDOS方法允许发射机（即传输用户）观察接收机（即，接收用户）的信道状况，并命令发射机向具有相对良好信道状态的特定接收机发送分组。 WDOS方法使用修改的RTS / CTS交换方法来执行信道探测。如果发射机广播BRTS帧，则每个接收机在其退避周期过去之后发送CTS帧。根据接收信号强度分布，回退延迟时间使CTS冲突的数量最小化，而与接收机的数量无关，减少了信道探测开销的数量，并使多用户分集增益最大化。相对通道条件越好，退避延迟时间越短。

2. 发明申请

US20080063106A1 Distributed opportunistic scheduling in IEEE 802.11 wireless location area networks (WLANs) 有权
标题翻译： IEEE 802.11无线定位区域网络（WLAN）中的分布式机会调度
公开(公告)号：US20080063106A1
公开(公告)日：2008-03-13
申请号：US11520541
申请日：2006-09-13
申请人： Seong-il Hahm , Jong-won Lee , Chong-kwon Kim
发明人： Seong-il Hahm , Jong-won Lee , Chong-kwon Kim
IPC分类号： H04L1/02
CPC分类号： H04W74/0825 , H04L1/0003
摘要： A WLAN distributed/opportunistic scheduling (WDOS) method for acquiring a multi-user diversity gain is disclosed. The WDOS method allows a transmitter (i.e., a transmission user) to observe channel conditions of receivers (i.e., reception users), and commands the transmitter to transmit packets to a specific receiver having a relative good channel condition. The WDOS method uses a modified RTS/CTS exchange method to perform the channel probing. If the transmitter broadcasts the BRTS frame, each receiver transmits a CTS frame after the lapse of its backoff period. According to the reception signal strength distribution, the backoff delay time minimizes the number of CTS collisions irrespective of the number of receivers, reduces an amount of channel probing overheads, and maximizes a multi-user diversity gain. The better the relative channel condition, the lower the backoff delay time.
摘要翻译：公开了一种用于获取多用户分集增益的WLAN分布/机会调度（WDOS）方法。 WDOS方法允许发射机（即传输用户）观察接收机（即，接收用户）的信道状况，并命令发射机向具有相对良好信道状态的特定接收机发送分组。 WDOS方法使用修改的RTS / CTS交换方法来执行信道探测。如果发射机广播BRTS帧，则每个接收机在其退避周期过去之后发送CTS帧。根据接收信号强度分布，回退延迟时间使CTS冲突的数量最小化，而与接收机的数量无关，减少了信道探测开销的数量，并使多用户分集增益最大化。相对通道条件越好，退避延迟时间越短。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式