6 Top Reasons Why You Should be Choosing Wireless over Wired Solutions
The un-tethered nature of wireless products simplifies deploying mobile systems. Real time video streaming to law enforcement vehicles is achieved by deploying subscriber units in vehicles that receive video from fixed base station units. As a result, police vehicles can view real-time video of crime scenes as they drive to the scene.
Read more how Proxim wireless enabled Post Falls Police Department officers to access information remotely from their petrol cars even when mobile at high speeds.
Video is a bandwidth intensive application and imposes stringent bandwidth requirements. Wireless equipment is available in capacities ranging from several Megabits to Gigabit rates, enabling quick build out of high capacity networks.
Availability of copper and fiber is dependent on the location, making the upgrading of existing wired infrastructure economically impractical in many areas. Wireless, on the other hand, can be deployed virtually anywhere, including over bodies of water, rugged terrain, and remote locations. Wireless networks install in hours or days (instead of weeks or months), eliminating long waiting periods and right-of-way issues associated with trenching for fiber.
High-end wireless systems support up to 99.999% availability, enabling virtually non-stop monitoring and surveillance. A wireless system with 99.999% availability has only 5 minutes of downtime in an entire year. In addition, in the event of a failure, wireless devices are easy to be replaced when compared to wired solutions that need to be in many cases completely replaced, when severed.
Due to digging and trenching, fiber based networks cost significantly more than wireless system, often about 5x-10x more. Deploying new broad-band copper networks is as expensive as fiber networks and is impractical for medium to long range deployments. Wireless is not only more cost-effective, but it also provides the added benefit of scalability based on bandwidth requirements.
Proxim’s Wireless Video Surveillance Cost Estimation
WIRELESS COST ESTIMATION
Upto 5 Miles
Base Station Unit
8 Port Managed Switch
Note: * One Managed Switch, Subscriber Unit on each pole
Flexible and Scalable
In many cases the deployment of wired solutions requires trenching. Not only is it much more expensive, but in scenarios where direct trenching would require tearing down a historic building or trenching through a busy intersection, it quickly becomes unfeasible. Wireless solutions, in contrast, provide unparalleled flexibility.
If the security network uses wireless infrastructure for connectivity, cameras need not be permanently located next to the wired network con¬nection. As necessary, cameras and subscriber units can be moved to a new location and can be reconnected within minutes. Carrier-class wireless solutions are available for even the largest scale deployments, and are available in ruggedized enclosures for deployment in all weather conditions. More economical solutions are also available for smaller, more budget conscious deployments.
Read how wireless solutions addressed the challenge city of Iguaçu to connect cameras even in virtually inaccessible and tough to reach spots.
Common concerns and questions on wireless infrastructure
Despite the rising demand and success of wireless video surveillance, emergency response and security organizations still see wireless installations with a lot of fear, doubt and uncertainty. Below are some common concerns and answers to how Proxim helps address those.
Can wireless devices support the bandwidth intensive HD cameras?
With latest radio innovations like 802.11n today wireless products can provide 300 Mbps plus data rates, whereas advanced High definition cameras even with high frames per second configurations at an average consume only about 3 to 4 Mbps throughput. Furthermore, bandwidth usage significantly reduces when latest compression techniques like H.264 are implemented.
Can wireless offer wired equivalent latency and jitter?
While we acknowledge that in terms of delay and jitter there are no wireless products that can provides latency and jitter as low as wired lines but the fact to be considered is that voice and video applications accept latency of about 50ms and jitter of about 5 ms. Whereas, outdoor solutions like Proxim’s deliver seamless voice and video streaming with latencies, less than 3 ms.
Is wireless reliable?
Most available systems are designed for 99.999 percent uptime – translating into just over five minutes of downtime during a one-year period. A system can be configured for 100 percent availability using redundant hardware.
Is the information secure over the air?
Few of the leading wireless solution providers use the AES-128 or Advanced Encryption Standard. Ratified by the National Institute of Standards and Technology, it is a secure 128 bit key standard, which means that it would take 2128 operations or 340, 282, 366, 920, 938, 463, 463, 374, 607, 431, 768, 211, 456 turns to decipher the message for an unauthorized user which is widely known to be out of reach even for the contemporary computing techniques. In addition to this operating within a licensed frequency enhances the security level.
Which topology should I choose?
Mesh Vs PtP, PtMP
Very often wireless engineers are confronted with the dilemma of using a mesh or a point to multipoint / point to point based infrastructure. The answer to it lies in the coverage area of the network .In the case of a small video surveillance deployment ranging in terms of few meters, a mesh infrastructure is ideal since mesh based solutions comprise of radio with CSMA/CA media access control protocol. Additionally due the multi-hop nature of the topology, information is relayed via multiple nodes that introduce a lot of latency and delay when implemented in medium to large scale deployments.
On the other hand in a point to point, point to multipoint deployment, subscriber units (end point in case of point to point) deliver the video traffic directly from the camera back to the BSU (end point in case of point to point). This provides dedicated connectivity to ensure the quality and performance needed for mission-critical video surveillance networks and the cost-effectiveness of a distributed network.
Why is Proxim the Right Choice for your Video Surveillance Network?
Comprehensive portfolio comprising of point to point backhauls, point to multipoint solutions that can deliver 300 Mbps data rates. Microwave backhaul products for gigabit plus data rates.
Extremely low latency (less than 3 ms), advanced jitter correction algorithm and minimal frame loss to ensure seamless, high definition video streaming from camera to the monitoring stations.
WORP® QoS, similar to the 802.16 WiMAX QoS ensures delay sensitive video and voice packets arrive with priority by differentiating the various traffic types and also allocates bandwidth based on the type of traffic.
Asymmetric bandwidth control provides flexible uplink (up to 95% uplink capacity) and downlink options - a must for video surveillance applications that typically have high capacity uplink traffic transmitted from cameras to video servers and monitoring stations.
Advanced interference mitigation features such as Dynamic channel selection constantly monitor and sense the environment and switch to channels with least interference.
Advanced error correction mechanisms such as cyclic redundancy checks, forward error correction and buffering plus retransmission to ensure error free video transmission.
Multicast support with IGMP Snooping forwards multicast traffic to ports that are members of the specific multicast group. Forwarding the traffic only to the destined ports reduces unnecessary load on devices to process packets.
Provides flexible channel planning with support for unlicensed, licensed 2.4, 5 GHz channel including public safety 4.9 GHz channels.
High speed mobility - seamless video roaming up to 295 km/h (185 mph) i.e. ensures all devices connected to the mobile radio maintain their IP connections and data stream without creating unnecessary retransmissions or link re-establishments.
Non-line-of-sight capable, utilizing OFDM and 3x3 MIMO techniques to improve link performance and penetrate through or around obstructions better.
Long range and extended coverage with high power up to 25.8 dBm transmission power.
Comprehensive ultra secure solutions with AES-128 for encryption, highly-secure remote management via SSL, SSH and SNMPv3 and Proxim’s Wireless Outdoor Routing Protocol (WORP®), which prevents snooping.
Features dual gigabit ethernet ports with PoE in/out to power other devices like surveillance cameras and wireless access points.
With operating temperatures from -40 °C to 60 °C along with IP67 grade enclosures, Proxim solutions work in the harshest of the environment conditions.
Complete FCAPS solution - easy network management Proxim Vision Network Management System offers a plethora of features ranging from fault management with email alert, maps and color coded link status, inventory management, customizable graphics to device level statistics and diagnostics reports.
Performance guarantee program-extended service, advanced technical support with 7x24x365 availability & warranties for investment protection.
Securing the Statue of Liberty
Proxim helps secure the Statue of Liberty National Monument and Liberty Island
Proxim Wireless delivered high capacity, wide area broadband utilizing WORP® technology to connect the new security systems and the control centers
The security system involved nearly 160 HD cameras of various types ranging from PTZ cameras to night vision capable cameras.