Radio Interface

Superpacketing mode

Superpacketing (called “burst” in our operating system) is a special mechanism for grouping two or more of shorter packets at radio link into larger packets, thus cardinally decreasing the response time for applications generating streams of short packets and avoiding major overheads connected with sending a separate radio packet (like guard time, acknowledgements and timeouts, preamble etc). Burst enabling relates to a radio interface as a whole. Superpacketing is most effective for voice and RTP traffic, gaming and other applications dealing with smaller packets.

Spectrum efficiency

With InfiNet Wireless devices you can utilize spectrum more efficiently. There are several ways to do this.

Using MINT meshing topology in planning your network decrees a demand for the spectrum comparing to multi-sectored Base Station design. It is especially critical for narrow bands (for example, 4.9GHz band which is just 50 MHz wide).

Moreover, you can use dual- or quadro-radios in your network. This will make frequency resource to be is consumed in a very effective way.

And even more, every radio in InfiNet Wireless device can be reconfigured for a narrower channel width which solves a spectrum utilization problem even more effectively. Although there will be a slight drop in capacity, narrower channel usage will allow avoiding interfered frequency channels and increase links’ fade margin.

All this opportunities are very important when you are lack of frequency resource while planning and deploying the network.

Spectrum efficiency is also very helpful in PTP links for long distances.

Channel time adjustment

Channel time, or Channel Burst Time, adjustment is time management for the unit to occupy the radio channel. It is used for increasing unit’s performance by decreasing overhead for each burst. In the InfiNet Wireless devices Channel Burst Time is fully automatic but can also be set manually which is very useful for PTP links and gives a significant increase in throughput on higher bitrates.

RTS

RTS is a short special packet sent each station before the transfer of an information packet and containing the desire to start transmission and proposed duration of that transmission. It is proposed to address “Hidden node” problem when subscribers hear only base station, but not each other.

If the base station sends a request, all users are delaying their transfer activity before the end of a base station’s one. If the subscriber sends a request, the remaining subscribers who have not heard the request take note of the base station response to allow the transmission and also delaying their transfer.

The mechanism is very controversial because it increases the total number of packets in a transmission, which themselves may conflict and does not affect the essence of the problem.
InfiNet Wireless, remaining RTS feature, addresses the hidden node dramatically changing the method of access to the environment by using sophisticated and efficient adaptive dynamic polling mechanism. Please refer to “MINT White Paper” for more details.

“Long” mode

Long mode is a special regime allowing building links (regardless of topology) on distances exceeding 23 kilometers (14 miles). Enabling this mode allows getting clean connection irrespective of the distance. InfiNet Wireless equipment has been tested working at the distances exceeding 80 kilometers (50 miles).

Transmit retries control

This feature allows defining the maximal number of repeat requests when sending unicast packets.