How to get smart about wireless backhaul
Shai Yaniv, Ceragon Networks
4/26/2011 8:39 AM EDT
What Makes Wireless Backhaul Smart?
Service Aware Traffic Management
aware traffic management refers to the ability to differentiate packets
by type. The transmitted data stream may be composed of E1/DS1s, ATM,
IP, or Ethernet. These packets may come from multiple sources and may
have different quality requirements. Smart backhaul is able to
prioritize the different flows and preserve the requirements of
contractual service level agreements (SLA).
High System Gain
The overall system gain of a backhaul
system greatly affects capital investment and service quality. A
sensitive receiver threshold performance will enable superior system
gain, regardless of the transmission power. From a business standpoint,
high system gain affects the capital investment. For example, high
system gain allows operators to reduce the number of links required to
cover a given distance. It also allows the usage of smaller, less
costly, antennas (this can also reduce rent fees in cases where
tower-space is leased from a third party). Last, high system gain
provides superior network availability and quality of service in harsh
With the telecom industry taking its
share of social responsibility and striving to conserve energy, power
consumption is a key component of a backhaul solution. Obviously, low
power consumption is also critical for achieving lower total cost of
ownership targets, particularly in private networks.
A smart wireless
backhaul will have advanced power consumption scheme, based on
real-time usage and environmental conditions. Smart power consumption
can provide up to 50% reduction in power consumption.
The common backhaul node integrates
equipment from multiple vendors handling various wireless and wireline
functionalities. The result is that physical space is scarce,
particularly if environmentally hardened outdoor units are required.
Equipment with minimal footprint design assists in squeezing the maximum
capacity into physical rack space.
Resiliency and Modularity
With network requirements
constantly evolving, any microwave backhaul solution implemented today
must be modular and inherently capable of supporting the new challenges
and requirements of tomorrow. Topology awareness is an important feature
as was explain above since a smart wireless backhaul will assure that
the traffic will get from point A to Point B even if there is a network
failure by recalculating an alternate path.
When High Capacity is simply not enough
struggle with the ever increasing demand for more data capacity and the
need to ensure high quality of service and user experience. Wireless
backhaul solutions based on point-to-point microwave can support these
requirements, but this will be done by systems that are more than mere
“dumb pipes.” Smart microwave solutions, which are network and traffic
aware, and which address operators’ needs for efficiency, reliability,
low cost and power reduction – will help drive next generation services
making them affordable and profitable.
About the Author
Shai Yaniv is Vice President of Product Management at Ceragon, a leading
provider of high-capacity LTE-ready wireless backhaul solutions. Mr.
Yaniv has over 18 years of experience in the telecom industry in the
fields of advanced communication systems, including wireless backhaul
networks and broadband wireless access solutions.
Over the years, Mr. Yaniv has been a key contributor to the
development of a variety of leading of wireless networks solutions for
various applications. Prior to joining Ceragon, Mr. Yaniv served in
leading product management, marketing and business development roles at
Alvarion, a leading WiMAX solutions provider. Mr. Yaniv holds a B.Sc in
Electrical Engineering from the Technion, Israel’s Institute of
Technology and M.Sc. in Electrical Engineering from the Tel-Aviv