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WR3000 4-Port Wireless DSL/Cable Router

6.2Wireless LAN Basics

6.2.1 RTS/CTS

A hidden node occurs when two stations are within range of the same Wireless Router, but are not within range of each other. The following fi gure illustrates a hidden node. Both stations (STA) are within range of the Wireless Router (AP) or wireless gateway, but out-of-range of each other, so they cannot “hear” each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other.

When station A sends data to the WR3000 Wireless Router, it might not know that station B is already using the channel. If these two stations send data at the same time, collisions may

occur when both sets of data arrive at the AP at the same time, resulting in a loss of messages for both stations.

RTS/CTS is designed to prevent collisions due to hidden nodes. An RTS/CTS defi nes the biggest size data frame you can send before an RTS (Request To Send)/CTS (Clear to Send) handshake is invoked.

When a data frame exceeds the RTS/CTS value you set (between 0 to 2432 bytes), the station that wants to transmit this frame must fi rst send an RTS (Request To Send) message to the AP for permission to send it. The AP then responds with a CTS (Clear to Send) message to all other stations within its range to notify them to defer their transmission. It also reserves and confi rms with the requesting station the time frame for the requested transmission.

Stations can send frames smaller than the specifi ed RTS/CTS directly to the AP without the RTS (Request To Send)/CTS (Clear to Send) handshake.

You should only confi gure RTS/CTS if the possibility of hidden nodes exists on your network and the “cost” of resending large frames is more than the extra network overhead involved in the RTS (Request To Send)/CTS (Clear to Send) handshake.

If the RTS/CTS value is greater than the Fragmentation Threshold value (see next), then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size.

Enabling the RTS Threshold causes redundant network overhead that could negatively affect the throughput performance instead of providing a remedy.

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ParkerVision WR3000 manual Wireless LAN Basics 1 RTS/CTS
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WR3000 specifications

The ParkerVision WR3000 is a cutting-edge wireless communication solution designed for high-performance applications that demand reliability and efficiency. At the heart of the WR3000's design is the innovative use of ParkerVision's proprietary technologies, which allow for enhanced transmission capabilities over traditional wireless methods.

One of the standout features of the WR3000 is its advanced modulation technique, which significantly increases data throughput while minimizing error rates. This technology enables the WR3000 to transmit data at high speeds, making it an ideal choice for applications such as video streaming, online gaming, and other bandwidth-intensive services. Users can expect seamless connectivity and a robust performance even in challenging environments.

In addition to its impressive data transmission capabilities, the WR3000 is equipped with smart antenna technology. This feature optimizes signal reception and transmission directionality, leading to improved performance and reduced interference. The adaptability of the WR3000's antennas allows it to maintain consistent connectivity regardless of user movement or changes in the surrounding environment.

The WR3000 also supports a range of communication standards, making it highly versatile for various applications. Its compatibility with both legacy and modern systems ensures a broad user base can integrate this technology into their existing infrastructure without incurring extensive additional costs.

Furthermore, the device is engineered with energy efficiency in mind. Its design minimizes power consumption without sacrificing performance, making it not only cost-effective but also environmentally friendly. This is particularly important in today’s world, where sustainability has become a crucial consideration for both consumers and businesses.

The ParkerVision WR3000 is also remarkably easy to install and configure, boasting a user-friendly interface that simplifies setup processes. This allows users, even those with limited technical expertise, to quickly get up and running, facilitating broader adoption across different sectors.

Lastly, ParkerVision's commitment to customer support ensures that users have access to resources and assistance post-purchase, enhancing the overall user experience. Whether for residential, commercial, or industrial applications, the WR3000 stands out as a powerful wireless communication solution that combines high performance, advanced technology, and user-friendliness in one compact package.
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