Backhaul is also very important for future wireless/wire communicaitons. How to evalulate a backhaul solution? As far as I know, capacity, delay(latency), outage and energy efficiency are important factors. However, it may be challenge to consdier all in one model, or it may be challenge to optimize all factors at the same time. So, what are the essential elements that we must consider for designing a backhaul solution?
Backhaul link is very important component in wireless communication.The backhaul should be chosen in such a way that efficient interference managent is possible
The backhaul exist between source node and intermediate node.Thus it should support joint transmission between destination node and intermediate node from source node.Thus a TDD mode will be efficient than FDD mode.The frequencies for backhaul and access link should be same and only difference is that timeslots should be different.
The best classical model for explaing backhaul is to take the example of tri sectored LTE cell where Bs commucates with relays as well as users UE.Effecient resource alocation i.e how resource blocks are allocated to both backhaul and acess links should be done so as to handle interference caused by bachaul.
A new approach is based on beamforming optimixation
Thank you, Mehboob UI Amin. So, when we design a backhaul solution, interference is also an important aspect to be handled. However, when we consider resource allocation, do we need to also evaluate the performance of access links, although the target is backhaul.
I suppose that the wireless edges of typical wireless networks today can be modeled as any network edge connections would be, with respect to the backhaul, or core network. When wireless, it's likely that packet loss at the edges will be greater than it would be with wired edge connections, but quite honestly, I don't see any other fundamental difference, which would impact on backhaul network design.
Here's an example. Take a 4G wireless network, and its backhaul, compared with a wired network with 1000BASE-T clients connected to it. Every one of the 4G cells in the wireless network can theoretically behave like a 1000BASE-T Ethernet edge connection in the wired network, but this won't typically be the case. Most of the time, the 4G base stations won't achieve their maximum theoretical throughout, depending on the location of the UEs and also on the number of UEs for every cell. So, with that in mind, the design of the backhaul network, for the 4G example, could possibly be degraded, compared with the wired 1000BASE-T example.
But aside from that type of loss consideration, I don't see why backhaul network design for wired or wireless should be fundamentally different.
Of course we need to alleviate acess link becoz in the we need to calculate the end to end throughput of whole contour(contour may be a typical lte cell)
If C be the total capacity of contour then
C= MIN(CBL,CAL)
TO SOLVE THIS OPTIMIZATION PROBLEM
arguments should be equal then we can use linear algebra to maximixe or optimize the throughput.Resource allocation here will take into account throughput of cell.
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