We intend to implement leading-edge technologies as they become available and regularly update and enhance the optional multiple services offered by Electech USA, Inc. 

In the future we will include even better security cameras, greater wireless range for more additional cameras on single networks, even better wireless Internet capabilities such as those made possible by MIMO. 

We will also enable increased information storage and quick reference services, with a view to contributing to a safer world.  We will contribute to the safety and peace-of-mind of communities, businesses and individual families as we incorporate state-of-the-art technologies, design and installation of integrated, security solutions; including monitoring, maintenance and other related services.

• Multiple Input Multiple Output (MIMO) Systems for Wireless Communications

In wireless mobile radio communication, there is an endless quest for increased capacity and improved quality. Within this area, we have during the last years studied ways to utilize antennas with multiple elements in an intelligent way.

In communication theory, MIMO refers to radio links with multiple antennas at the transmitter and the receiver side. Given multiple antennas, the spatial dimension can be exploited to improve the performance of the wireless link. The performance is often measured as the average bit rate (bit/s) the wireless link can provide or as the average bit error rate (BER). Which one has most importance depends on the application.

A recent announcement provided a glimpse into the future of wireless networking with the Tru MIMO Gen 3 chipset. This chipset supports data rates of up to 240 Mbps while still maintaining backwards compatibility and interoperability with 802.11b/g standards-based wireless networks.

In considering this news, it's important not to confuse data rates with "real-world" throughput. According to Dr. Greg Raleigh, President and CEO of Airgo Networks, consumers can expect to achieve up to 120 Mbps of TCP throughput on non-compressible data. This is approximately five times the throughput normally achieved with 802.11g products.

This is really a landmark achievement because for the first time wireless networks can achieve performance that exceeds the performance of 100-Mbps wired Ethernet. "This is the tipping point for consumers," said Raleigh. "They'll no longer have to decide where it makes sense to install a wireless network. Instead they'll have to decide where it makes sense to install a wired network." This level of performance makes wireless home networking for such applications as IPTV and large file transfers much more practical than the performance compromises associated with the technology based on earlier wireless network specifications.

The Tru MIMO Gen3 chipsets build on the Tru MIMO technology pioneered by Airgo Networks. Tru MIMO achieves performance gains over conventional wireless networking products using a technique called spatial multiplexing. Tru MIMO sends separate, multiple data streams on the same channel simultaneously.

Gen3 chipsets achieve their performance improvements with more advanced signal encoding and processing techniques (i.e., more data/bits transmitted) as well as a new technique that Airgo has labeled ACE—Adaptive Channel Expansion. Adaptive Channel Expansion is a "neighbor friendly" technology that can send data on more than one standard channel simultaneously. It uses the standards-based "listen before transmit" protocols to ensure that its transmissions don't interfere with standards-based wireless traffic on either channel. Thus, it can co-exist and interoperate with 802.11b/g clients while at the same time, utilize available "air time" to boost performance.

• The Good Signs Solacam uses a mixture of technologies to deliver a remote digital video signal back to our network.  One such camera is an 802.11b-based, point-to-multipoint backhaul solution with a range up to about 12 miles. The Solacam itself is an IP video camera mounted on a Good Signs pole in a remote location, powered by a battery that is charged by a solar panel. A Yagi directional antenna points the low-res video back to home base using the MP.11 subscriber station, and the MP.11 and battery are also housed in the all-weather Good Sign enclosure.