12/27/2016 Banking & Finance Situation: Connectivity from Land to Moving Vessel Scientific and military organizations spend a great deal of time and money on vast and varied oceanic research. Cruise ships leave port for exotic locations daily. Commercial fishing vessels and freighters travel the waters every day. From research to commerce, all these activities involve a vessel that moves on – or under – water, requiring reliable and high-bandwidth communications to and from a land base for sharing streaming video, images, photographs, data and even voice. Challenge: Ensuring Reliable, High-Quality Transmissions Bodies of water are always in motion and frequently choppy, creating a high degree of multipath fading as radio signals reflect off the water. The air above can be just as problematic, causing ducting as the signals move through air masses of different densities. Compounding the challenge, the vessel is in motion, and the land base can be many miles from the vessel. Therefore, the demands on a wireless communications system are stringent: It must efficiently handle multipath fading and ducting, travel long distances between hops and offer sufficient bandwidth to deliver heavy-duty applications. Solution: Communicating to the Moving Vessel with Broadband Wireless In a single-carrier system, the signal varies due to reflection and ducting. However, the reflection is used to advantage in PTP equipment by deploying vertically separated antennas at one or both ends of a link, creating two radio paths that don’t experience reflection and ducting at the same time. By optimally combining the separate transmissions, this equipment eliminates signal cancellation and maximizes the signal received in each direction. PTP equipments have successfully established connections to moving ships at distances up to 20 miles (32 km). Such challenging deployments are successful due to the high system gain of powerful radio transmitters and super-sensitive receivers, adaptive modulation, and built-in spatial diversity that reduces the effects of ducting and water reflection. In addition, the rotation and movement of the ships relative to the land normally dictates the use of omni-directional or sector antennas, depending on the specific application. With solutions that offer cost-effective, digital communications at carrier-class reliability – up to 99.999% – and provide throughput rates from 3 Mbps up to 300 Mbps, PTP is combined these innovative technologies that are proven to minimize interference and maximize throughput: - Inherent Spatial Diversity - i-OFDM (Intelligent Orthogonal Frequency Division Multiplexing) - Multiple-Input Multiple Output (MIMO) - Advanced Spectrum Management with Intelligent Dynamic Frequency Selection - Adaptive Modulation Military and scientific organizations, shipping and fishing enterprises, entertainment and cruise ship companies can all see a fast return on investment – typically less than one year – due to: - Robust and reliable communications to and from a floating vessel where previously it was not possible - High bandwidth for heavy-duty applications - All-IP voice, video and data communications - Seamless integration with existing LAN and WAN - Cost-effective, easily deployed system