Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The V-BLAST (vertical Bell Labs layered space-time) architecture involves independent coding/decoding per antenna (layer) with equal rate and por per antenna and a fixed order of nulling/canceling decoding but is known to suffer from poor performance; for example, in a multi-input multi-output (MIMO) Rayleigh fading channel with M t  transmit and M r  receive antennas (M r  ges M t ), the diversity-multiplexing gain (D-M) tradeoff is just (M r -M t +1)(1-r/M t ) for risin[0, M t ]. There are two remedies available, namely, (i) channel-dependent ordered decoding at the receiver and (ii) allocation of rates and pors across the transmit antennas. Hover, the former doesn't improve the D-M tradeoff curve and while the latter does (with maximum diversity gain M r  and maximum multiplexing gain M t ), its tradeoff curve is still significantly inferior compared to the D-M tradeoff curve of the optimum (unconstrained) MIMO architecture. In this two-part paper, it is shown that a dramatically better D-M tradeoff and error (e.g. outage) probability can be obtained if the two remedies, i.e., ordered BLAST decoding and rate/por allocation, are judiciously combined. Indeed, a framework is developed for jointly designing channel-dependent ordered decoding at the receiver and decoding order-dependent rate/por allocation at the transmitter. The framework encompasses a large class of new spatial multiplexing architectures (SMAs). In this part, an upper bound to the D-M tradeoff for this class is obtained and found to be quite close to the optimal D-M tradeoff of the MIMO channel. Two special SMAs are proposed corresponding to two different decoding orderings. One is called the norm ordering rate tailored SMA (NRT-SMA), and the other is called the greedy ordering rate tailored SMA (GRT-SMA). The latter is shown to have the D-M tradeoff equal to the upper bound and is hence optimal in D-M tradeoff among the proposed class of SMAs. Compared to the traditional V-BLAST architecture, the only added complexity of these SMAs is due to (i) feeding back the decoding order information (leslog 2 (M t !) bits) per channel realization, and (ii) applying rate and por allocation according to a pre-computed lookup table.
['Yi Jiang', 'Mahesh K. Varanasi']
I am writing a research paper on a idea Spatial Multiplexing Architectures with Jointly Designed Rate-Tailoring and Ordered BLAST Decoding - Part I: Diversity-Multiplexing Tradeoff Analysis
[{"from": "human", "value": "I am writing a research paper on a idea Spatial Multiplexing Architectures with Jointly Designed Rate-Tailoring and Ordered BLAST Decoding - Part I: Diversity-Multiplexing Tradeoff Analysis"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The V-BLAST (vertical Bell Labs layered space-time) architecture involves independent coding/decoding per antenna (layer) with equal rate and por per antenna and a fixed order of nulling/canceling decoding but is known to suffer from poor performance; for example, in a multi-input multi-output (MIMO) Rayleigh fading channel with M t  transmit and M r  receive antennas (M r  ges M t ), the diversity-multiplexing gain (D-M) tradeoff is just (M r -M t +1)(1-r/M t ) for risin[0, M t ]. There are two remedies available, namely, (i) channel-dependent ordered decoding at the receiver and (ii) allocation of rates and pors across the transmit antennas. Hover, the former doesn't improve the D-M tradeoff curve and while the latter does (with maximum diversity gain M r  and maximum multiplexing gain M t ), its tradeoff curve is still significantly inferior compared to the D-M tradeoff curve of the optimum (unconstrained) MIMO architecture. In this two-part paper, it is shown that a dramatically better D-M tradeoff and error (e.g. outage) probability can be obtained if the two remedies, i.e., ordered BLAST decoding and rate/por allocation, are judiciously combined. Indeed, a framework is developed for jointly designing channel-dependent ordered decoding at the receiver and decoding order-dependent rate/por allocation at the transmitter. The framework encompasses a large class of new spatial multiplexing architectures (SMAs). In this part, an upper bound to the D-M tradeoff for this class is obtained and found to be quite close to the optimal D-M tradeoff of the MIMO channel. Two special SMAs are proposed corresponding to two different decoding orderings. One is called the norm ordering rate tailored SMA (NRT-SMA), and the other is called the greedy ordering rate tailored SMA (GRT-SMA). The latter is shown to have the D-M tradeoff equal to the upper bound and is hence optimal in D-M tradeoff among the proposed class of SMAs. Compared to the traditional V-BLAST architecture, the only added complexity of these SMAs is due to (i) feeding back the decoding order information (leslog 2 (M t !) bits) per channel realization, and (ii) applying rate and por allocation according to a pre-computed lookup table."}]