Sell Your Projects | My Account | Careers | This email address is being protected from spambots. You need JavaScript enabled to view it. | Call: +91 9573777164

Spectrally Efficient Diversity Exploitation Schemes for Downlink Cooperative Cellular Networks

1 1 1 1 1 Rating 4.80 (90 Votes)


In this correspondence, we advocate the exploitation of direct links for downlink cooperative cellular networks, where one base station (source) communicates with one out of $N$ mobile users (destinations) by using a half-duplex decode-and-forward (DF) relay. Motivated by the potential spectrum-efficiency enhancement, we propose two spectrally efficient schemes for the diversity exploitation of the considered systems in a homogeneous network topology. By scheduling the user with the best direct link to access the channel, an incremental DF relaying scheme is first presented, and its outage behavior is analyzed, revealing that this scheme can achieve full diversity order $(N + hbox{1})$. To further enhance transmission robustness against fading (in terms of outage probability), an improved scheme is also proposed, which substantially utilizes the opportunistic scheduling mechanism when the direct transmission fails. Outage analysis for this scheme shows that, aside from achieving full diversity order, it can further improve the transmission reliability to fading, compared with the preceding one. In addition, it is indicated that the expected spectral efficiency of the proposed schemes approaches that of direct transmission in the high-signal-to-noise-ratio (SNR) regime. Finally, adjustment of the proposed schemes for heterogeneous network topology is presented, and the corresponding outage behavior is characterized as well.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

Spectrally Efficient Diversity Exploitation Schemes for Downlink Cooperative Cellular Networks - 4.8 out of 5 based on 90 votes

Project EnquiryLatest Ready Available Academic Live Projects in affordable prices

Included complete project review wise documentation with project explanation videos and Much More...