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随着无线网络日益受到欢迎,用户需要更高的带宽、更大的覆盖范围和更好的可靠性。标准的“点到点”或“点到多点”技术,比如802.11和蓝牙,都是短距离、直视条件下(line-of-sight)的无线网络,有着固有的局限性。随着额外节点加入网络并分享接入点数据流,这些网络的带宽会逐渐降低。由于链路噪声和传输错误,带宽还会随着距离增加而降低。多数标准的
With the increasing popularity of wireless networks, users need higher bandwidth, greater coverage, and better reliability. Standard “point-to-point” or “point-to-multipoint” technologies such as 802.11 and Bluetooth are short-range, line-of-sight wireless networks that have inherent limitations . As additional nodes join the network and share the access point data stream, the bandwidth of these networks will gradually decrease. Due to link noise and transmission errors, the bandwidth also decreases as the distance increases. Most standard