The Traditional Distribution System : DAS/POI
Power Divider
Power Divider
 Passive network is difficult to manage and requires complex link
calculation.
 Most of the power are wasted on the copper cable.
Coupler
Coupler
 At least 20W output is required (POI depends on output power of
RRU).
 The use of a large number of RRUs to cover a wider area needs more
space and heat dissipation is significant.
Cable
POI
RRU
BBU
Fiber
 All the base stations should be installed at the same site.
RRU
Fiber
BBU
 Network is difficult to expand.
MDAS Solution
Multiservice Distributed Access System
 Active network is easier to manage and expand. NO link
calculation is required.
 Built on FOC infra. No wasted power and no interference.
MDAS Solution
2G
RU1
EU1
3G
RU2
RU3
AU
 Very low output power is required.
RU4
MIMO1
LTE
MIMO2
Coax
Fiber Composite
EU2
RU5
RU6
 RUs are tunable via NMS and can be easily tested and
optimized.
MDAS Value Proposition
Multiservice Distributed Access System
 Supports 2G, 3G, 4G and 5G (future) networks simultaneously.
 Optical fiber based transmission mechanism.
 Can provide coverage up to 400,000 sqm. per BTS (POI solution requires 1 BTS per POI to cover 8,000
sqm.)
 MDAS does not require link budget calculation.
 MDAS provides end-to-end management capabilities (AU, EU and RU), line-fed powering of RUs for
significant OPEX savings. (POI requires significant space and controlled environmental temperature due to
high heat dissipation).
 MDAS is easy to implement, maintain, manage and expand.
 MDAS can facilitate and provide better SLA with end users.
OPEX Savings: Low Power Consumption
MDAS only requires less power consumption compared to POI, thus, there’s a
significant savings in OPEX with regards to power requirement.
TABLE: MDAS vs POI power requirement comparison
MDAS Composite Cable
Fiber composite cable used by MDAS is relatively cost-effective than the use of RF feeder cables in
traditional DAS system.
MDAS Solution Deployment
MDAS CONNECTIVITY
COAX
FIBER
COMPOSITE