@incollection{,
	
					
					
					5F1C797956BB2173772CC5D69F48E9D1
				,
	author={{Walid M.Raafat} and {Mohamed I.Youssef} and {Ibrahim F.Tarrad} and {Al Azhar University, Cairo}},
	journal={{Global Journal of Researches in Engineering}},
	journal={{GJRE}}2249-45960975-586110.34257/gjre,
	address={Cambridge, United States},
	publisher={Global Journals Organisation}1572534
}

@incollection{b0,
	
	
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	title={{Establishing wireless communications services via high-altitude aeronautical platforms: A concept whose time has come?}}
		,
	author={{
			GMDjuknic
		} and {
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}

@incollection{b1,
	
	
		,
	title={{An overview of MIMO communications-A key to gigabit wireless}}
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	author={{
			AJPaulraj
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			DGore
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			RUNabar
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			HBolcskei
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@incollection{b3,
	
	
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			NEDaly
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	journal={{International Journal of Satellite Communications}}
		
			
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}

@incollection{b4,
	
	
		,
	title={{Elevation Dependent Shadowing Model for Mobile Communications via High Altitude Platforms in Built-Up Areas}}
		,
	author={{
			JaroslavHolis
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	journal={{IEEE Transactions on Antennas and Propagation}}
		
			56
			
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}

@incollection{b5,
	
	
		,
	title={{Joint channel estimation, equalization and data detection for OFDM systems in the presence of very high mobility}}
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	author={{
			EPanayirci
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			HVPoor
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			8
			
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}

@incollection{b6,
	
	
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	title={{Statistical modeling of cochannel interference in a field of Poisson distributed interferers}}
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	author={{
			KGulati
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			BLEvans
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			KRTinsley
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	booktitle={{Proc IEEE ICASSP}}
				IEEE ICASSP
		
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@incollection{b7,
	
	
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	title={{A model reduction approach for OFDM channel estimation under high mobility conditions}}
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	author={{
			TYAl-Naffouri
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	journal={{IEEE Trans. Signal Process}}
		
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			4
			
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}

@incollection{b8,
	
	
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	title={{Adaptive Allocation for Usable Frequency in FFR Based femtocell Network Environment}}
		,
	author={{
			JGKim
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		,
	booktitle={{Ubiquitous and Future Network (ICUFN), 2013 Fifth International Conference}}
				
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	year={July 2013}
			
		
	

}

@incollection{b9,
	
	
		,
	title={{Fractional Frequency Reuse for Hierarchical Resource Allocation in Mobile WiMAX Networks}}
		,
	author={{
			TAli-Yahiya
		} and {
			HChaouchi
		}}
		
	
	
		,
	journal={{EURASIP Journal on Wireless Communications and Networking}}
		
			,
	year={2010}
		
	

}

@book{b10,
	
	
		,
	title={{Foschini and Gans, Multi antenna systems for MIMO communications, A Publication in the}}
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	author={{
			SRSaunders
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			AArgo-Zavala
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	year={2007. 2008}
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	publisher={Morgan & Claypool Publishers series}
			
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	address={NY}
		
	
	,
	note={Antennas and Propagation for Wireless Communication Systems}

}

@incollection{b11,
	
	
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	title={{Robust and efficient intercarrier interference mitigation for OFDM systems in time-varying fading channels}}
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	author={{
			XHuang
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}

@incollection{b12,
	
	
		,
	title={{Novel scheme for joint estimation of SNR, Doppler, and carrier frequency offset in double selective wireless channels}}
		,
	author={{
			JHua
		} and {
			LMeng
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			XYou
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		,
	journal={{IEEE Trans. Veh. Technol}}
		
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			3
			
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}

@incollection{b13,
	
	
		,
	title={{Detection of OFDM signals in fast-varying channels with low-density pilot symbols}}
		,
	author={{
			M.-XChang
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			T.-DHsieh
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	journal={{IEEE Trans. Veh. Techno}}
		
			57
			
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}

@book{b14,
	
	
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	title={{}}
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	author={{
			WirelessCommunications
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			AndreaGoldsmith
		}}
		
		
			,
	year={2005}
			,
	publisher={Cambridge University Press}
		
		
			Stanford University
		
	

}

@incollection{b15,
	
	
		,
	title={{A new derivation of least-squaresfitting principle for OFDM channel estimation}}
		,
	author={{
			M.-XChang
		}}
	
	
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	journal={{IEEE Trans. Wireless Commun}}
		
			5
			
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	year={April 2006}
		
	

}

@incollection{b16,
	
	
		,
	title={{Modeling and Capacity Analysis of Correlated MIMO Channels}}
		,
	author={{
			AShreedhar
		} and {
			MaheshH MJoshi
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		,
	journal={{International Journal of Engineering Science and Technology}}
		
			2
			
			,
	year={2010}
		
	

}