On the Quantizer Design for Base Station Cooperation Systems with SC-FDE Techniques

By employing BS (Base Station) cooperation we can
increase substantially the spectral efficiency and capacity of cellular
systems. The signals received at each BS are sent to a central unit that
performs the separation of the different MT (Mobile Terminal) using
the same physical channel. However, we need accurate sampling and
quantization of those signals so as to reduce the backhaul
communication requirements.
In this paper we consider the optimization of the quantizers for BS
cooperation systems. Four different quantizer types are analyzed and
optimized to allow better SQNR (Signal-to-Quantization Noise
Ratio) and BER (Bit Error Rate) performance.

• K. Firsanov
• S. Gritsutenko
• R. Dinis

• Base Stations cooperation scheme
• Bit Error Rate (BER)
• Quantizer
• Signal to Quantization Noise Ratio (SQNR)
• SCFDE.

<p>[1] F. Casal Ribeiro, R. Dinis, F. Cercas, A. Silva, &ldquo;Efficient detection and
quantization requirements for the uplink of base station communication
systems&rdquo;. IEEE 2012
[2] B. Widrow, &ldquo;Statistical theory of quantization&rdquo;, IEEE Trans. Instrum.
Meas., vol. 45, no.2, pp. 353-361, Apr. 1996.
[3] Teresa Ara&uacute;so, Rui Dinis, &ldquo;Performance evaluation of quantization
effects on multicarrier modulated signals&rdquo;, IEEE 2007.
[4] S.P. Lloyd, &ldquo;Least squares quantization in PCM&rdquo;, IEEE Trans. Inform.
Theory IT-28, 129-137 (1982)
[5] Gritsutenko, R. Dinis, K. Firsanov, &ldquo;Quantization for maximum
preservation of information&rdquo;, IASTED SPPRA&rsquo;2013, Innsbruck,
Austria, Feb. 2013.
[6] D. Dardari, &ldquo;Exact analysis of joint clipping and quantization effects in
high speed WLAN receivers,&rdquo; in proc. IEEE ICC, Anchorage, AK, pp.
3487-3492, May 2003.
[7] H. Rowe, &ldquo;Memoryless nonlinearities with Gaussian input: Elementary
results,&rdquo; Bell Syst. Tech. J., vol.61, no. 7, pp. 1519-1525, Sep. 1982.
[8] R Gray, &ldquo;Quantization noise spectra,&rdquo; IEEE Trans. Inf. Theory, vol. 36,
no. 6, pp. 1220-1244, Nov. 1990.
[9] R.Dinis, A. Gusm&atilde;o, N. Esteves, &ldquo;On broadband block transmission
over strongly frequency selective fading channels,&rdquo; in Proc. Wireless
2003, Calgary, Canada, July 2003, pp. 261-269.
[10] J. Max, &rdquo;Quantizing for minimum distortion&rdquo;, IRE Trans. Information
Theory, IT-6, pp. 7-12, 1960.</p>