Simulation of IEEE 802.16j Mobile WiMAX Relay Network to Determine the Most Efficient Zone to Deploy Relay Station

Bulbenkienė, Violeta; Pareigis, V.; Andziulis, Arūnas; Kurmis, Mindaugas; Jakovlev, Sergej

doi:10.5755/j01.eee.112.6.451

Cited by 3 publications

(2 citation statements)

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“…where C i is the estimated spectral efficiency in bps/Hz, max C is the upper limit based on the hard spectral efficiency given by 64QAM with the coding rate of 0.753 equal to 4.32 bps/Hz [1], [4], [7]. i  is the SINR for each user in the cell, BW eff is the adjustment for the system bandwidth efficiency, and eff  is the adjustment for the SINR implementation efficiency.…”

Section: A Capacity Of Cell Without Relaymentioning

confidence: 99%

“…One of the open questions regarding the deployment of wireless networks using RN is the optimal location for RNs that can provide maximum capacity and the number of relay stations per cell compared with the total cost. Based on the spectrum used for access and relay links, relaying can be classified into out-band and in-band types [2], [4]. Out-band relaying implies that relay link operators are used in a spectrum which is different from that of access Manuscript received January 25, 2013; accepted March 10, 2014. link operators.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing Power and Mitigating Interference in LTE-A Cellular Networks through Optimum Relay Location

Aldhaibani

Yahya

Ahmad

2014

ElAEE

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In this paper, we propose new scheme for an optimum location for Relay Node (RN) in LTE-A cellular network to enhance the capacity at cell edge based on modified Shannon capacity for LTE networks. The proposed approach mitigates interferences between the nodes and ensures optimum utilization of transmitted power. In addition, this papers the mathematical derivation of optimal number of RNs per cell to prevent the overlapping between neighbouring RNs meanwhile providing the best coverage. Mathematical results are validated by Simulation results and indicate an improvement in capacity for users at the cell edge from 0.6 b/s/Hz to 1.45 b/s/Hz and 40% increment from all cell capacity. Moreover, a gain about 8 dBm and 25 dBm is observed for users at the cell edge for uplink and downlink in the received signal respectively. It has been concluded from the numerical analysis which is conducted on limited interferences for all nodes (in-band and out-band) provides simplicity and ease in implementation by the RF planning designers.

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Section: A Capacity Of Cell Without Relaymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%