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1. 发明公开

EP2329668A4 MEDIA ACCESS CONTROL PROTOCOL FOR MULTIUSER DETECTION ENABLED AD-HOC WIRELESS COMMUNICATIONS 有权转让
标题翻译：中华人民共和国电信与安保手册
公开(公告)号：EP2329668A4
公开(公告)日：2016-06-01
申请号：EP09829520
申请日：2009-09-25
申请人： COLLISION COMM INC
发明人： NIEDZWIECKI JOSHUA D , HOMBS BRANDON P
IPC分类号： H04W40/00
CPC分类号： H04W74/0833 , H04B1/7105 , H04L27/0006 , H04W74/002
摘要： A method is disclosed for increasing the communication capacity of a shared ad-hoc wireless channel by using multiuser detection (MUD) to distinguish overlapping information transmitted simultaneously by a plurality of nodes. The transmitting nodes simultaneously provide parameter-estimating signals over separate, unshared, low-rate parameter channels generated using orthogonal frequencies, spread spectrum technology, or time multiplexing. Receiving nodes use these separate, non-overlapping parameter-estimating signals to estimate MUD-required signal parameters such as amplitude, phase, and frequency offset, thereby enabling use of lower complexity MUD receivers, because the parameters are not estimated in the presence of other interference. Node ID, spreading code type, and/or other information can also be transmitted over the parameter channels. Limiting the number of parameter channels can limit the maximum number of transmitting nodes. Amplitudes of parameter channel transmissions can be greater than communication channel transmissions by a known ratio. Parameter channels can be frequency-hopped for jam-resistance.
摘要翻译：公开了一种用于通过使用多用户检测（MUD）来增加共享自组织无线信道的通信容量以区分由多个节点同时发送的重叠信息的方法。发射节点同时通过使用正交频率，扩频技术或时间复用产生的分离，非共享，低速率参数信道提供参数估计信号。接收节点使用这些分离的非重叠参数估计信号来估计诸如幅度，相位和频率偏移的MUD所需要的信号参数，从而使得能够使用较低复杂度的MUD接收机，因为在其它的存在下不估计参数干扰。节点ID，扩展码类型和/或其他信息也可以通过参数信道发送。限制参数通道的数量可以限制发送节点的最大数量。参数信道传输的幅度可以通过已知比率大于通信信道传输。参数通道可跳频阻止。

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