How Open-Loop Transmit Diversity in Wimax?

Transmit spatial diversity is a newer phenomenon than receive diversity and has become widely implemented only in the early 2000s. Because the signals sent from different transmit antennas interfere with...
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Interference Limited MIMO Systems for Wimax

The third assumption—that the background noise is Gaussian and uncorrelated with the transmissions—is especially suspect in a cellular MIMO system. All well-designed cellular systems are by nature interference limited: If they...
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Interference Limited MIMO Systems for Wimax, cellular mimo, interference problem, interference aware, mimo systems, spatial multiplexing, transmit antennas, cell interferencea interface, epc radio interface, interference, mimo, power control, radio interface, sinr, Wimax

Spatial Multiplexing and Receiver Gains in Wimax

Spatial Multiplexing In a multipath environment, the data rate increase due to MIMO is equal to the number of MIMO antennas. Rather than to transmit the same bit of more...
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Receive Diversity Selection and Switched Diversity

Make use of a number of receive antennas that are well separated (coherence distance) to generate independent receptions of the transmitted signal. Selection diversity: choose received signal with largest received...
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Types of Diversity Space, Time, Spatial, Frequency and Polarization

We know that we normally have several independent paths from TX to Rx of different lengths, these are affected and delayed differently, Signals that start out together at the transmitter...
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RADIUS Protocol Stack in Wimax

RADIUS is a protocol that enables a single server to become responsible for all remote access authentication, authorization, and auditing (or accounting) services. RADIUS functions as a client/server system. The...
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What are IP Multimedia Subsystem IMS and IMS Structure

IMS means IP Multimedia Subsystem is an essential part of the all-IP UMTS architecture and Relevant for WiMAX for the same usage and also for WiMAX to UMTS Interworking. This...
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IP Multicast Service Models – Dense and Sparse Modes

IP Multicast Service Models Having Three Multicast Any-Source Multicast (ASM) Source-Filtered Multicast (SFM) and Source-Specific Multicast (SSM) which work as below. Any-Source Multicast (ASM) Destination ‘multicast’ address only defines ‘Group’...
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Multicast Advantages and Disadvantages

When sending the same data to multiple receivers, rather than send multiple copies all the way from sender to all the receivers, just send one copy and duplicate where paths...
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Multicast Advantages and Disadvantages, Distributed Applications, Optimised Performance, multicast, advantages, Multicast applicationsmulti, multi antenna in lte, multi layer frequency reuse, multi mimo, multicarrier, multipath, multipath propagation

Why IP Addresses? Why private and public both IP address needed?

IP Networks use Routers to do the switching based on IP addresses, Layer 3 routing protocols like BGP or OSPF an Ethernet networks use 48 bit MAC addresses Spanning Tree...
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Mobile IP Procedures – Agent Discovery, Registration, Tunneling in Wimax

Mobile IP Procedures Having Three Flow. Agent Discovery Registration Tunneling Agent Discovery Agent Discovery is the method by which a mobile node determines whether it is currently connected to its...
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Multicast Forwarding Advantage and disadvantage in Short

Here I write in short Advantages and disadvantages of Multicast Forwarding. Multicast Routing is backwards from Unicast Routing Unicast Routing is concerned about where the packet is going or will...
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Multicast Forwarding Advantage and disadvantage in Short, mulitcast, forwarding, advantage, disadvantage, interface, Reverse Path ForwardingWimax

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