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IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 29, NO. 6, JUNE 2011 1273 On OFDMA Resource Allocation and Wavelength
 

Summary: IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 29, NO. 6, JUNE 2011 1273
On OFDMA Resource Allocation and Wavelength
Assignment in OFDMA-Based WDM
Radio-Over-Fiber Picocellular Networks
Jingjing Zhang, Student Member, IEEE, and Nirwan Ansari, Fellow, IEEE
Abstract--This paper addresses the orthogonal frequency-
division multiple access (OFDMA) resource allocation and wave-
length assignment problems in wavelength-division multiplexing
(WDM) radio-over-fiber picocellular networks with OFDMA as
the wireless modulation and access scheme. We consider the
case that the number of WDM wavelengths is limited in which
one wavelength is shared among multiple picocells. The set
of picocells sharing the same wavelength is referred to as a
nanocell in this paper. Since picocells in the same nanocell
cannot be allocated with OFDMA resource block (RB) of the
same frequency at a time, the intra-nanocell interference is
eliminated. However, picocells in different nanocells may be
allocated with OFDMA RBs of the same frequency at a time, thus
posing interference to each other. To minimize the inter-nanocell
interference, OFDMA RBs of the same frequency are assigned to

  

Source: Ansari, Nirwan - Department of Electrical and Computer Engineering, New Jersey Institute of Technology

 

Collections: Engineering