Distributed scalar quantizers for subband allocation

摘要: Efficient downlink resource allocation (e.g., subbands in OFDMA/LTE) requires channel state information subband gains) local to each user be transmitted the base station (BS). Lossy encoding of relevant may result suboptimal allocations by BS, performance cost which captured a suitable distortion measure. This problem is an indirect distributed lossy source coding with function computed representing optimal allocation, and measuring allocations. In this paper we investigate use scalar quantizers for state, where BS wishes compute index largest gain on subband. We prove superiority heterogeneous (across users) quantizer design over homogeneous design, even though variables are i.i.d.